Not who you think she is - Park Hayan

In her human guise, Park Hayan stands at 5'5"—a height that does little to draw attention in a crowd and only reinforces the impression she naturally cultivates. At first glance, she appears almost unremarkable: soft-featured, with dark brown hair that falls loosely around her face, and warm brown eyes that carry a quiet, disarming gentleness. There is a fragility to her presence, something subtle yet persistent, as though she could easily be overlooked in any room she enters. People tend to misread her as delicate, even vulnerable—the kind of person who would shrink from confrontation rather than ever meet it head-on. That assumption lingers just long enough to become a fatal mistake.

Because beneath that carefully unassuming exterior lies something profoundly unnatural.

When her vampiric nature surfaces, the transformation is immediate and hauntingly elegant. Her hair drains of all warmth, turning a pure, almost luminescent white that frames her face like a halo carved from moonlight. Her eyes shift into a piercing crystalline blue—cold, predatory, impossibly sharp—standing in stark contrast to the deep red of her lips, as though stained by something far older than blood alone. Even then, the illusion of fragility does not fully vanish. Her slender frame, her calm posture, the quiet precision in the way she holds herself—it all continues to suggest restraint rather than destruction, control rather than annihilation.

But that illusion does not survive what comes next.

In her berserk state, Park Hayan becomes something closer to a natural catastrophe than a living being. The whites of her eyes collapse into an abyssal black, erasing every trace of humanity, while her glowing blue irises burn with an almost unbearable intensity—like twin stars pressed into the shape of a gaze. Her body no longer simply carries power; it radiates it. Her heart beats with such overwhelming force that it becomes visible beneath her skin and clothing, a luminous, rhythmic pulse like a war drum echoing through her entire form.

It is here that her height becomes deceptive in a far more terrifying way. At 5'5", she should be dwarfed by most opponents, easily overshadowed in any battlefield presence. Yet in this state, perception itself warps around her. Standing before other vampires, she no longer feels small—she feels colossal. The space she occupies seems to expand unnaturally, as though the world is forced to accommodate her presence. Opponents do not look down at her; they look up, instinctively, as if confronted by something vast and inescapable. She becomes less a woman and more a towering, godlike force rendered in human shape.

Every movement she makes is absolute. No hesitation. No mercy. No resistance that can meaningfully endure her presence. Armies cease to be armies; they become moments waiting to end. Coordination collapses, numbers lose meaning, strength becomes irrelevant. Everything that approaches her simply reaches its conclusion.

What once looked like weakness was never weakness at all—it was restraint. And when that restraint finally disappears, what remains is not a fighter, but the end of everything that thought it could stand in her way.

Park Hayan begins, at her core, as someone who wants to be ordinary. Not in the shallow sense of fitting in, but in the deeper, almost desperate longing to exist without causing harm. She carries herself with a soft, approachable warmth—cheerful when she can be, gentle when it matters most—carefully cultivating an image of normalcy that allows others to feel at ease around her. This outward brightness is not entirely fake; it reflects a genuine kindness rooted in her upbringing and her desire to be someone her family can be proud of. Yet even in her smiles, there is restraint, as though she is constantly holding something back, measuring every word and gesture so she doesn’t reveal what she truly is. ([unholyblood.fandom.com][1])

That restraint defines much of her early personality. Hayan is deeply self-conscious, almost painfully aware of her identity as a pureblood vampire—a being feared and hated by the world. This awareness manifests not as arrogance, but as quiet shame. She internalizes the hatred directed at her kind, convincing herself that her existence alone is a potential threat. Because of this, she avoids using her powers whenever possible, choosing suppression over expression, limitation over freedom. It’s not cowardice—it’s restraint born from empathy. She would rather diminish herself than risk becoming the monster others expect her to be. ([unholyblood.fandom.com][1])

Her empathy is, in many ways, the most defining aspect of her character. Hayan feels deeply—too deeply, perhaps. She cannot ignore suffering, even when it would be safer to do so. Innocents matter to her in a way that shapes her every decision; even enemies are not always reduced to targets in her eyes. She recognizes the nuances in people, especially in those who have been exploited or twisted by greater forces. This capacity to see humanity—or what remains of it—in others makes her compassionate to a fault, willing to shoulder burdens that are not hers simply because she cannot look away. ([unholyblood.fandom.com][1])

At the same time, Hayan is not naïve. Despite her sheltered upbringing, she possesses a quiet perceptiveness that allows her to read situations and people with surprising accuracy. She observes more than she speaks, and when pushed into action, she can improvise with sharp intelligence and creativity. There is a grounded practicality to her thinking—she adapts quickly, making decisions that balance her morals with the harsh realities she faces. This blend of emotional depth and situational awareness makes her far more formidable than her gentle demeanor suggests. ([unholyblood.fandom.com][1])

However, beneath her kindness lies something far heavier: trauma. The loss of her parents and the violence tied to her past fracture her psyche in ways she does not fully confront at first. She represses memories, burying them so deeply that they become ghosts shaping her behavior from the shadows. This repression feeds into her fear of herself—because somewhere inside, she knows what she is capable of. Her personality, in its early stages, is as much a defense mechanism as it is genuine; her softness is real, but it is also armor against a truth she cannot yet face. ([unholyblood.fandom.com][1])

When that fragile balance is shattered—particularly after the death of Father Michael—Hayan undergoes a profound shift. Grief does not simply wound her; it refocuses her. The girl who once avoided her power begins to embrace it, not out of pride, but out of necessity. Her personality hardens, becoming sharper, more driven, more unyielding. The warmth remains, but it is buried beneath a growing intensity—a singular purpose to make things right, no matter the cost. ([unholyblood.fandom.com][1])

This transformation introduces a dangerous duality within her. Hayan remains empathetic, still protective of innocents, still unwilling to cause unnecessary harm—but alongside that compassion grows a capacity for brutality. When faced with those she deems irredeemable, particularly the Angels of Death, she exhibits a cold, almost unsettling satisfaction in destroying them. It is not mindless cruelty, but it is undeniably darker than the girl she once was. The line between justice and vengeance begins to blur, and she walks it with increasing ease. ([unholyblood.fandom.com][1])

Her moral code, however, never truly disappears—it evolves. Hayan operates on a deeply personal sense of right and wrong, one that prioritizes protection over purity. She is willing to dirty her hands if it means saving others, willing to become what she fears if it ensures that no one else has to suffer as she did. This internal conflict—between who she wants to be and what she must become—defines much of her emotional struggle. It gives her actions weight, making every decision feel like a compromise between light and darkness.

Relationships are central to her identity. Hayan is profoundly loyal, forming deep attachments to those she cares about and drawing strength from those bonds. She values connection, support, and mutual trust, often placing others’ well-being above her own. This tendency can make her self-sacrificial, even reckless, as she is willing to endure pain, risk, or loss if it means protecting the people she loves. Her world, in many ways, revolves around these connections—they are both her anchor and her greatest vulnerability. ([So Syncd][2])

Despite everything, Hayan retains a certain humility. She does not see herself as a hero, nor does she seek recognition. If anything, she struggles with self-worth, often defining herself by what she can do for others rather than who she is. This humility, combined with her empathy, makes her approachable and human in a way that contrasts sharply with her overwhelming power. She is not driven by glory or dominance, but by a quiet, persistent desire to make the world less cruel than it was to her.

And yet, at her most extreme, there is a terrifying truth embedded in her personality: Hayan is capable of becoming exactly what she fears. When pushed far enough—when her emotions override her control—her restraint fractures, and what remains is pure, unfiltered instinct. In those moments, her compassion does not vanish, but it is drowned beneath something primal and destructive. It is this potential, this ever-present possibility of losing herself, that makes her not just powerful, but tragic.

Ultimately, Park Hayan is defined by contradiction. She is gentle, yet capable of immense violence; selfless, yet driven by deeply personal motives; fearful of herself, yet willing to embrace that self when necessary. Her personality is not static—it is a constant negotiation between who she was, who she is, and what she might become. And it is within that tension, that fragile balance between humanity and monstrosity, that her character truly comes alive.

Abilities: Extreme Strength and Speed

Hayan’s physical power is not simply “superhuman”—it exists on a level that fundamentally breaks the balance of combat within her world. As the only confirmed true pureblood vampire, her body operates far beyond the limits of even other high-tier vampires, to the point where strength is no longer something she exerts, but something she embodies. The most telling example of this is how effortlessly she halts an incoming attack: stopping a vampire’s punch with a single finger, without strain, without motion, without even the suggestion of resistance. This is not just strength—it is absolute physical superiority expressed with minimal effort.

Her speed follows the same principle. Hayan does not merely move fast; she moves faster than her opponents can meaningfully react. Even when her powers were suppressed, she was capable of outrunning and overwhelming beings like Lucian, an Angel of Death, who themselves exist far above standard vampires in terms of speed and lethality. What makes this even more striking is that this performance occurred while she was limited, meaning her true speed is something the narrative only fully reveals once her memories—and thus her power—are restored.

When she fights at full capacity, her strikes are no longer contained to simple physical impact. Each blow carries such overwhelming force that it generates shockwaves, distorting the air and environment around her. This transforms her combat style into something almost catastrophic: every movement becomes an area-of-effect attack, every punch a localized eruption of force. She is not just hitting her enemies—she is displacing the world around them.

Ultimately, Hayan’s strength and speed define her as an entity that cannot be matched through conventional means. Opponents cannot outmuscle her, outrun her, or outlast her. Her physicality alone places her at the top of the hierarchy, making every other ability she possesses even more dangerous, because they are all layered on top of an already overwhelming foundation.

Hypnosis

Hayan’s hypnosis is one of her most terrifying abilities, not because of how often she uses it, but because of how absolute it is when she does. Unlike weaker forms of vampiric suggestion, which rely on gradual influence or specific triggers, Hayan’s hypnosis operates as direct mental domination—an imposition of her will onto another consciousness. When she regained this ability in battle, it immediately demonstrated a level of potency that eclipsed even the Angels of Death.

What makes her hypnosis particularly dangerous is its resistance-breaking nature. In a world where even powerful vampires can resist or counter mental interference under the right conditions, Hayan’s control bypasses those defenses entirely. Even beings who specialize in mental manipulation cannot escape her influence once it takes hold. This places her hypnosis in a category closer to inevitability than technique—if she chooses to use it fully, the outcome is already decided.

There is also a psychological dimension to how her hypnosis functions. It is not limited to commanding actions; it can influence perception, emotions, and potentially even memory. This means Hayan doesn’t just control what someone does—she can alter how they experience reality. Pain can be amplified, fear can be induced, and thoughts can be redirected, making her a threat not only to the body, but to the mind itself.

Despite its overwhelming nature, Hayan rarely relies on hypnosis as her primary weapon. This restraint is significant. It reflects her moral hesitation and her reluctance to strip others of their agency unless absolutely necessary. In other words, her hypnosis is not limited by capability—it is limited by choice. And that distinction makes it even more dangerous, because it means that when she finally does use it without restraint, there is nothing left to stop her.

Shapeshifting

Hayan’s shapeshifting ability stands apart from typical transformation powers because of its precision and depth. She is not merely capable of altering her appearance; she can assume the true form of another individual, even if she has never seen it before. This implies that her transformation is not based on imitation alone, but on some deeper perception—perhaps tied to her psychic abilities or her understanding of identity itself.

This ability grants her an almost unmatched level of adaptability. Infiltration, deception, and misdirection become trivial when one can perfectly replicate another person’s form. Unlike other shapeshifters, who rely on observation or physical contact, Hayan’s transformations transcend those limitations, making her capable of bypassing even the most secure forms of identification or recognition.

However, what makes this power particularly interesting is how rarely she uses it. Despite its immense strategic value, Hayan does not rely on deception as a primary tactic. This speaks to her personality—she prefers direct confrontation, driven by her moral clarity and desire to resolve conflicts openly rather than manipulate from the shadows.

That said, the existence of this ability adds another layer to her already overwhelming arsenal. It reinforces the idea that Hayan is not just powerful in one dimension—she is versatile, capable of adapting to any situation. The fact that she chooses not to use such an advantage frequently only emphasizes how much of her strength is held back by her own principles.

Extreme Recovery and Regeneration

Hayan’s regenerative abilities ensure that even when she is harmed, the damage is rarely permanent. Her body recovers from injuries and fatigue at a rate far exceeding that of mixed-blood vampires and even Angels of Death, placing her among the highest tiers of survivability within the series. This regeneration allows her to endure prolonged battles that would completely incapacitate others.

However, her regeneration is not absolute. It does not grant true immortality, nor does it function instantaneously. Severe damage—especially to vital organs—can still threaten her life if inflicted rapidly enough. This limitation is crucial, as it prevents her from becoming invulnerable and maintains a sense of tension in her battles.

What makes her regeneration particularly effective is how it interacts with her other abilities. Combined with her strength and speed, it allows her to fight aggressively without needing to prioritize defense. She can afford to take risks, knowing that her body can recover from most forms of damage, which further amplifies her already overwhelming combat presence.

In essence, her regeneration does not make her untouchable—it makes her relentless. It ensures that even if she is pushed back, even if she is injured, she will continue to fight, forcing her opponents into a battle of endurance they cannot win.

Enhanced Senses

As a vampire, Hayan’s sensory perception is heightened far beyond human limits, particularly in terms of hearing and smell. This allows her to detect threats, track targets, and navigate environments with a level of awareness that borders on omniscience in close-range situations.

Her enhanced senses are especially useful in darkness or chaotic environments, where ordinary perception would fail. She can identify subtle changes in her surroundings, detect hidden enemies, and react to stimuli that others would not even notice. This makes her extremely difficult to ambush or deceive.

Beyond combat, her senses also contribute to her investigative abilities. She can pick up on details others miss, helping her uncover hidden truths and understand complex situations. This ties directly into her intelligence and observational skills, reinforcing her role as both a fighter and a strategist.

Ultimately, her enhanced senses ensure that she is rarely caught off guard. They act as a constant stream of information, feeding into her decision-making and allowing her to maintain control over any situation she enters.

Creative Tactician and Intelligence

Hayan’s intelligence is often understated compared to her raw power, but it plays a crucial role in how she operates. She is highly observant, capable of analyzing situations quickly and identifying unconventional solutions to complex problems. This creativity allows her to adapt in ways that more rigid thinkers cannot.

She is also an exceptionally fast learner. Techniques that take others years to master can be understood and applied by her in a matter of hours. This rapid adaptability makes her dangerous not just because of what she can do, but because of how quickly she can evolve.

Her tactical thinking is particularly evident in combat. She does not rely solely on brute force, even though she could. Instead, she combines strategy with power, using her abilities in ways that maximize efficiency and minimize unnecessary risk.

This balance between intelligence and strength is what elevates her above other characters. She is not just powerful—she is effective, capable of using that power with precision and purpose.

Telepathy

Hayan’s telepathy allows her to directly access the thoughts of others, effectively bypassing all forms of external communication. This ability gives her unparalleled insight into her opponents, revealing their intentions, memories, and emotional states.

In combat, this translates into a massive advantage. She can anticipate actions before they occur, counter strategies before they are executed, and exploit weaknesses that would otherwise remain hidden. It becomes nearly impossible to deceive her when she can read the truth directly from the mind.

Telepathy also allows for silent communication, enabling coordination without revealing intentions to enemies. This makes her an even more effective ally and leader in battle scenarios.

At its core, her telepathy reinforces her dominance over both physical and mental domains. She does not just fight her enemies—she understands them completely.

Fire Manipulation

Hayan’s fire manipulation is a direct manifestation of her pureblood nature, producing flames that are not only visually distinct but significantly more powerful than those of other vampires. Her fire burns blue, indicating an intensity far beyond ordinary flames.

These flames are capable of overwhelming even other high-tier vampires, melting through defenses and causing devastating damage on contact. Her control over fire is precise, allowing her to shape, direct, and intensify it at will.

What sets her apart is not just the power of her flames, but the scale at which she can use them. Her fire is not limited to small bursts or attacks—it can dominate entire battlefields, turning her surroundings into a weapon.

In many ways, her fire represents the raw destructive aspect of her nature. It is power in its purest, most unrestrained form.

Telekinesis

Hayan’s telekinesis allows her to manipulate objects and forces through sheer mental power, adding another layer to her already overwhelming arsenal. This ability enables her to control the battlefield without physical contact.

She can move, restrain, or crush targets from a distance, effectively attacking from angles that cannot be defended against. This makes her incredibly difficult to engage in direct combat.

Telekinesis also enhances her versatility. She can combine it with her other abilities, using it to immobilize enemies before striking, or to control multiple targets simultaneously.

Ultimately, her telekinesis reinforces a central truth about Hayan: she does not need to touch the world to dominate it. She only needs to will it.

Weaknesses:

Memory-related Power Suppression: Prior to Lucian killing Father Michael, while Hayan was still stronger than any Mixed Blood Vampire, her full powers were locked away from her. This included most of her true physical power and all her psychic abilities. This suppression was apparently linked to her repressed memories of her childhood. In other words, because she could not remember anything of her past before meeting Father Michael, she could not use her full abilities. Hayan slowly regained her memories, as well as her powers, as she fought the Angels of Death. This weakness ceased upon regaining her full memories after learning that "God" was her former childhood friend.

Emotional Control: While seemingly levelheaded in most situations, Hayan is fueled by a desire for revenge. In particular, she is quick to anger and act recklessly. The easiest way to provoke Hayan is to threaten her loved ones or display absolute immorality.

Inability to Control Her True Power Without Assistance: All Pureblood Vampires have access to seemingly unstoppable power, but to reach the absolute peak of that power comes at a cost: Sentient thought and control of their actions. When Hayan enters this state, she is unable to distinguish friend and foe and will attack any living being near her. The only way to stop her is to use the Crown of Thorns that Father Michael gave her. Hayan tries to avoid fighting without it so she wouldn't lose control.

Pureblood Power Suppression: Other Pureblood vampires, even imperfect ones, have the ability to suppress the psychic powers of other Purebloods. Hayan is unable to utilize her psychic powers, such as hypnosis, while under this effect.

Side Characters: Executive Summary White Blood’s cast spans from human allies to supernatural foes. Father Michael (Myeongsu Choi) is a human Catholic priest and ex-soldier who adopts Hayan and raises her as his daughter. He is protective, disciplined, and harbors deep guilt for failing to show affection; ultimately he sacrifices himself fighting Angels of Death. Detective Euntae Hwang starts as a young police prodigy whose parents turn out to be vampires. He becomes a vampire himself (then a pureblood by drinking Hayan’s blood) and leads the Vampire Task Force; he is dutiful, justice-driven, and deeply loyal to Hayan (his fiancée). Yohan Seo is Hayan’s childhood friend and first love who is saved by her family. After becoming an “imperfect” pureblood vampire (by devouring Hayan’s father’s heart), Yohan grows nihilistic and forms the Angels of Death; he kills Hayan’s parents and emerges as the main antagonist obsessed with seizing Hayan’s pureblood power. “Baal” (Vael) is Wontae Jeong, a former stage magician turned vampire Angel of Death under Yohan. Calm and cunning, Vael possesses pyrokinetic “bomb” magic and extreme speed. Initially Yohan’s lieutenant, he ultimately switches allegiance to Hayan (to save his pet lion Daniel) and becomes an uneasy ally. Ash (Jinha Kim/Ayeong Song) is another Angel of Death – a former orphan and pop actress. She secretly killed her best friend Ayeong to assume her identity and, ridden by guilt, serves the vampire god. Ash can shapeshift and drain life energy by touch, and she actively hunts Hayan (even impersonating Hayan on TV). In sum, Father Michael and Euntae are Hayan’s human protectors and loved ones, while Yohan and Ash are her most vicious enemies. Baal stands between, starting as an antagonist but ultimately aiding Hayan’s cause.

Father Michael Father Michael (Myeongsu Choi) was originally a soldier who, after a traumatic incident, left the military and became a Catholic priest. In the story, he encounters young Hayan Park (a frightened orphaned vampire) and takes her into his care. Michael is stern and duty-bound, instilling discipline and faith in his adoptive children (Hayan and her foster siblings). Physically, he is a tall, wiry man with short spiky grey hair and typically wears a priest’s habit. He has no supernatural powers – his strength lies in combat training and cunning. Michael once rigged traps and used military tactics (even an RPG launcher) to fight vampires. Despite his harsh exterior (the wiki notes “he hasn’t smiled” since his trauma), he is deeply caring. His primary motivation is protecting his family: he will risk or even sacrifice his life for Hayan. Over the story, Michael evolves from a strict guardian to a self-sacrificing hero; his unresolved grief (from war and the trials of raising “monsters”) remains, but he becomes more openly loving (writing lamenting letters to Hayan he never delivered).

Raised by Michael under a church’s roof, Hayan’s human identity and “monster” secret are known only to him. He mentors Hayan to hide her vampire nature, going so far as to craft a thorn crown to help her switch forms without harm. In scenes from the saga, Michael is the first adult to truly embrace Hayan despite her blood. He often interrupts services to protect her when Angels of Death (like Lucian) come searching for the Pureblood. In one key event, Michael prepares a fiery trap in the church, decimating a vampire mob before Angel Lucian arrives. Lucian mortally wounds Michael, pinning him under debris in a burning church. Michael lives just long enough to reconcile with a tearful Hayan, urging her to survive and carry on. After his death, Michael becomes the moral compass haunting Hayan’s conscience; she is “haunted by regret that she didn’t do anything to save him”. His demise sharply shifts Hayan’s character from gentle protector to focused avenger.

Father Michael’s relationship with Park Hayan is exactly that of adoptive father and daughter. He discovered Hayan as a child alone on the streets and raised her in the church. Although he can be strict (even scolding Hayan when she uses her powers), he is implicitly affectionate. The fan wiki notes that Michael often brings Hayan “favorite food” and guarded her secret identity. He protects her by teaching her to control her vampiric instincts and by publicly shielding her. Crucially, Michael never abandons Hayan for being a vampire; even after calling vampires “monsters” once, he immediately regrets it and reaffirms his love. In short, Michael is Hayan’s surrogate parent and steadfast champion. His paternal care helps keep Hayan grounded, and his death galvanizes her resolve. The emotional bond is strong: Hayan is described as having been sheltered by Michael, which gave her confidence and kindness. After Michael’s sacrifice, Hayan internalizes his values – using her powers only to “make things right” in his memory. Thus their bond defines Hayan’s early life and motivations.

Key Relationship Events: Michael’s role as protector establishes Hayan’s innocence; his ultimate sacrifice motivates Hayan’s quest for vengeance. Even after his death, Hayan frequently recalls his teachings and out of guilt pushes herself to be worthy of his love. Michael’s absence also isolates Hayan initially, but spurs her to adopt Michael’s duty to protect others – a legacy that influences all her later alliances. Overall, the Father-Hayan bond moves from tender parent-daughter warmth to a tragic driver of the plot.

Euntae Hwang Euntae Hwang is introduced as a gifted police detective (Captain of the Criminal Investigation Division) obsessed with hunting rogue vampires. Born to poor parents, he was a top student at the police academy. His life takes a sharp turn when it is revealed his late parents were vampires; in a confrontation they are killed, and Euntae nearly dies too. To save him, his family drinks vampire blood, inadvertently turning Euntae into a vampire. Initially struggling with this fate, Euntae’s sense of justice drives him to continue a police career despite his new nature. He is calm, dutiful, and highly intelligent with keen detective skills. Over time he gains full vampire strength (and eventually pureblood power after drinking Hayan’s blood) but retains his human motivations. Euntae’s main driving goals are protecting innocents and punishing evil; he is especially focused on rooting out corruption and dangerous vampires from within the force.

Euntae’s key life events revolve around his transformation and partnership with Hayan. Soon after turning, he joins the newly formed Vampire Task Force. A pivotal moment is when he meets Hayan during a vampire attack at a university. He intervenes to save her, and suspects the white-haired student is a vampire. After some tests (which Hayan passes reluctantly), he deduces she is a pureblood. Recognizing her good heart, he silently helps her escape the police, marking the beginning of their cooperation. Not long after, Euntae locates Hayan at a crime scene; empathetic to her situation, he offers his help to eliminate ruthless vampires. Euntae and Hayan agree to team up: he provides her lodging in his home and shares police intel, while she uses her power on missions. Over the story, they hunt more Angels of Death (notably Sahan) and also uncover betrayals within the police. In one arc, Hayan suspects Euntae might be hiding something – he denies working for evil, but ultimately admits he’s a vampire and reveals he has only months left to live. That confession deepens their trust: Hayan forgives him and they make plans together. As Euntae continues to rescue civilians and protect his sister, he grows closer to Hayan. By the climax, he and Hayan are more than allies – Euntae repeatedly risks himself for her, and it is revealed he has come to love and even become engaged to her (as some sources note). Throughout, Euntae evolves from a lone warrior into a devoted partner and guardian.

Powers & Skills: Euntae, originally human, becomes a converted vampire (and later full pureblood) – giving him superhuman strength, speed, senses, and rapid healing. Although his psychic powers are unclear, he does exhibit strong combat and tactical ability. In his pureblood form (after drinking Hayan’s blood), his eyes turn blue and hair white. He also develops a strong fighting style based more on technique than raw power. Crucially, he retains his human detective training and sense of justice, making him a resourceful investigator of the supernatural.

Relationship with Hayan Euntae and Hayan’s relationship begins with mutual aid and cautious understanding. Euntae first crosses paths with Hayan during a vampire-related incident: after saving her, he quietly offers assistance (“a way to escape”) when her life is in danger. Hayan respects his courage and kindness, even when he suspects she is a vampire. Their teamwork solidifies when Hayan deliberately confesses to murder to lure out the true culprit – Euntae intervenes, and from then on they become partners. From these first meetings, a bond of trust forms. They share the common goal of purging evil vampires, and Euntae’s empathy (having once been human) helps Hayan feel understood.

As their missions continue, the emotional dynamics deepen. Euntae comes to rely on Hayan’s power and compassion, calling her his most talented ally. Hayan appreciates Euntae’s unwavering support and moral clarity. After the incident where Hayan “tests” Euntae and he reveals his vampirism, a confrontation ensues but ends in mutual honesty. This vulnerability creates intimacy: Euntae is moved by Hayan’s forgiveness and understanding, while Hayan admires his strength of character. Shared crises – like battling Angels of Death and the ordeal of Euntae’s sister’s kidnapping – reinforce their trust. In private moments they are playful and caring (the wiki notes Euntae making Hayan dinner with his sister). By the end of the series, their friendship has blossomed into love: Hayan’s family wiki explicitly lists Euntae as Hayan’s fiancé. Thus their relationship transforms from cautious allies to devoted partners, marked by deep mutual respect, shared loss (both have lost parents to vampire violence), and a commitment to protect one another.

Yohan Seo Yohan Seo is the tragic figure turned villain of White Blood. In childhood he was a timid, kind boy and Hayan’s first friend. Hayan’s adoptive father even treated Yohan like a son. However, after Yohan nearly dies saving Hayan, her family turns him into a vampire to save his life. This began Yohan’s fall: once a human with suicidal tendencies, becoming (half-)vampire warps him. Eventually Yohan devours Mr. Park’s pureblood heart, becoming a powerful but imperfect pureblood vampire. This fuels a sadistic streak: he murders Hayan’s father and mother in cold blood. Trauma (abuse and alienation) breaks Yohan; by adulthood he is cruel, megalomaniacal, and obsessed with Hayan. The fan wiki emphasizes that Yohan “does not care about anybody now, except maybe Hayan, who he wants to possess”.

Becoming leader of the Angels of Death – a cabal of six elite vampires – Yohan manipulates the new vampire society behind the scenes. His powers include enhanced strength, speed, and possibly hypnotic control (similar to other purebloods), but he is notably more ruthless than skilled. Over the story, Yohan orchestrates most of the conflict. Ten years after turning, he orders his Angels to hunt down Hayan’s pureblood heart. Key events: he massacres Hayan’s family and her childhood friend Daniel (the lion) under Vael’s watch; he commands Angel Sahan to capture high school kids; and he directly confronts Hayan during the final battles. Eventually, Yohan becomes something of a quasi-demon or avatar of “God” in the vampire mythology (the story hints Yohan is possessed by the vampire god). In a climactic confrontation, Yohan is ultimately confronted and killed by Hayan herself. Through it all, Yohan’s character arc is a descent: from a hopeful youth grateful to Hayan, to a bitter mastermind murdering her family, to an obsessed godlike villain.

Yohan’s abilities are unmatched by ordinary vampires: even as an “imperfect pureblood,” he gains tremendous strength (e.g. ripping out Hayan’s father’s heart easily). He can dominate lesser vampires and create the other Angels of Death. However, he lacks the higher clairvoyant powers of a pureblood and is eventually outmatched by Hayan’s superior pureblood might (as Hayan’s blood built up over time). Intellectually, Yohan is manipulative and charismatic; he convinces powerful vampires to join his cause. His motivations become increasingly twisted – he believes Hayan’s pureblood essence rightfully belongs to him and that she betrayed him.

Relationship with Hayan Yohan and Hayan share a bitterly complex history. Once childhood best friends (even first love), the two are forever entwined by the events of Yohan’s conversion. Hayan begged her parents to save young Yohan (whom thugs had nearly killed), which led them to turn him. In that sense, Hayan directly gave him life – a debt Yohan does not repay. Early on, Yohan adores Hayan (secretly in love with her), but after transformation his feelings warp into an obsessive jealousy. He believes Hayan “stole” everything (her purity, the love of his life) and thus he must reclaim her – even if it means killing her. As the series unfolds, their connection shifts violently from friendship to mortal enmity.

Pivotal confrontations mark their bond. Yohan’s betrayal is ultimate: he slaughters Hayan’s parents in front of her, and psychologically scars her by forcing her to flee as a child. When older, he taunts Hayan with his twisted love, using their past trust to manipulate her. In their final clash, Yohan still harbors feelings (“I loved you,” he admits), but violently lashes out to claim her blood. Hayan, in turn, feels haunted by guilt and rage: fighting Yohan means confronting her most painful memories. Each battle between them is fraught with emotion. However, as the story concludes, Hayan bests Yohan – absorbing or destroying his vampiric heart – effectively freeing both from that twisted bond. Their relationship evolves from innocent childhood friendship into a fatal, heart-wrenching rivalry. Notably, some sources hint that by his dying moment Yohan had glimpses of his former self (still caring for Hayan), but the canonical resolution is his defeat by her hand . In sum, Yohan’s arc is defined by Hayan: he lives for her approval and dies by her vengeance, making their relationship the darkest and most personal conflict in White Blood.

Baal Baal (Korean “Baal” 바알) is Wontae Jeong, a powerful dark-skinned vampire and former stage magician. In life he was known for flamboyant illusions; after the vampire uprising he was transformed into one of Yohan’s six Angels of Death. Physically, Baal is tall and muscular, with dyed purple hair and red eyes. His signature ability is pyrokinesis: he creates fiery explosive projectiles (often playing-card bombs) from his fingertips. He also exhibits extreme speed (moving so fast GPS trackers fail) and sharp intelligence – trained as a magician, he excels at deception and tactics. Initially Baal is fiercely loyal to Yohan, serving as his right-hand lieutenant. However, Baal’s true devotion is revealed to be to his pet lion, Daniel: he would betray the Angels to save his friend. Baa’s backstory includes attending the Angels’ council (seeing Sahan killed by Ash) and subtly undermining Yohan from within. Over the series, Baal grows conflicted; he eventually sides openly with Hayan when he realizes Yohan is an impure monster and Hayan holds the key to saving Daniel. His motivation is largely personal loyalty (to Daniel) and a fundamental disdain for Yohan’s cruelty. Baal does not undergo a classic redemption (he was never truly evil), but rather a shift from secret helper to open ally of Hayan.

Baal’s role is that of an ambiguous ally. While originally an antagonist, he becomes indispensable to Hayan’s cause. He teaches Hayan about pureblood mechanics (essential for planning) and even hides Euntae from Yohan’s forces after faking his death. Notably, he does not have a direct fixed confrontation with Hayan like others – instead, his arc is about switching sides. By the end, Baal fights alongside the heroes against the God and other Angels. He remains alive and, in the epilogue, helps ensure a future for Hayan’s world (even forming a peaceful “family” with Daniel and their allies).

Relationship with Hayan Baal and Hayan begin as enemies on opposite sides of the vampire conflict. Hayan (as a pureblood hero) initially sees Baal as just another Angel serving Yohan. In the early Angels’ meeting scene, Baal even mocks Yohan’s failure while Hayan is not present, showing he is poised against both Hayan and Yohan. However, Baal’s feelings change dramatically once he chooses to protect Daniel. He secretly seeks out Hayan, proposing a deal: if she helps find a cure for vampire lifespans (via his theory on consuming blood), he will betray Yohan. According to the fandom wiki, “Baal appeared to switch loyalty to Hayan if it meant he could save Daniel. Hayan, though cautious, is willing to listen... After learning of Baal’s sincerity and deception against Yohan, Hayan appears to be more sympathetic and friendly towards him”. In other words, Baal becomes an uneasy but cooperative ally. He never fully earns Hayan’s complete trust (her detective fiancé Euntae remains skeptical), but they come to respect one another.

Crucial shared events: Baal warns Hayan about Ash’s impending trap (revealing Hayan on national TV) and helps her escape some dangers. He carries information crucial to Hayan’s plan. Their emotional dynamic is one of cautious alliance: Hayan is wary because Baal was once Yohan’s lieutenant, but she values his gifts and insider knowledge. They have no romantic ties; their bond is almost fraternal. Hayan admires Vael’s sincerity (he was the first to admit Yohan was wrong) and even forgives his past by treating him more like a teammate. Baal, in turn, shows loyalty to Hayan’s protective goals and occasionally modest fondness (he ultimately calls Hayan by name and ensures her safety even at great risk). By story’s end, Baal stands among Hayan’s friends. In summary, their relationship evolves from wary adversaries to pragmatic partners, united by a common cause (defeating the God and saving lives) rather than personal affection.

Ash Ash (originally Jinha Kim) is a human-turned-vampire who becomes one of the Angels of Death. Born in an orphanage alongside her best friend Ayeong Song, Jinha was a talented actress-in-training. The vampire uprising claimed Ayeong as a casualty (Ayeong died in an orphanage fire), and soon Jinha herself was turned into a vampire. Overwhelmed by grief and jealousy when Ayeong later attracts a male suitor, unstable Jinha murders Ayeong and takes on her identity. Rechristened “Ash” (and also going by Ayeong Song publicly), she rises to fame as a celebrity while serving the vampiric deity. Physically, Ash’s “Ayeong” form is a pretty brunette in her mid-20s, but her true form (Jinha) is more pale/blonde. Ash’s chief powers are supernatural shapeshifting and life-force manipulation. She can instantly assume others’ appearances (we see her mimic Hayan and Sahan). Her signature “life energy” touch allows her to age victims decades in moments – even recovering souls for the God.

Ash is initially enigmatic and seems almost sympathetic compared to other Angels. She donates to charity and hides her guilt. However, beneath the veneer she is ruthless. Key life events include her killing of Ayeong (for which she secretly blames herself), and later joining Yohan’s Angels. She attends the meeting where she coldly executes Sahan, showing no mercy. Ash’s main arc involves an elaborate plan to expose and discredit Hayan. She uses her face-stealing ability to impersonate Hayan on live TV (an official summary reveals, “Ash... [planning] to go on national TV disguised as Hayan and reveal that she’s a vampire...”). This forces a direct confrontation. Ash battles Hayan and Euntae at various points, using cunning illusions (in one scene she disables security cameras with telekinesis). Her motivation seems rooted in twisted duty: she wants to further God’s agenda and keep the vampire world hidden in dominance by fear. Deep down, though, she is haunted by guilt over her past actions – whenever someone praises her public persona (Ayeong), Ash mentally collapses. By the end of the series, Ash’s fate is sealed when Hayan defeats her (Ash is killed or stripped of power, as implied in the finale).

Relationship with Hayan Ash and Hayan are mortal enemies from their first encounter. Their dynamic is driven by life-or-death conflict and psychological warfare. Ash, masquerading as Ayeong, has an outsider’s fascination with Hayan (the pureblood) but no personal connection. Their first direct interaction comes when Hayan tracks down Sahan’s hideout: Ash has already slaughtered Sahan, and her next target is Hayan. In a tense confrontation, Ash mocks Hayan’s compassion and almost scares her (she even attempts to vampirize Euntae while disguised, revealing how close she can get). Ash’s ploy to publicly unmask Hayan is the clearest pivotal event: Hayan must face Ash not just in combat, but in the court of public opinion. This ordeal forces Hayan to trust only a few and fight Ash very publicly.

Throughout their conflict, the emotional tone is one-sided – Hayan sees Ash as the cruel face of vampirism, while Ash sees Hayan as a means to prove God’s power. They trade blows many times. A notable moment is when Hayan’s hypocrisy is challenged on live TV – Ash, wearing Hayan’s face, threatens thousands with the truth that Hayan’s real goal is killing all half-bloods for revenge. Hayan responds by risking it all to expose Ash’s deception, eventually physically battling Ash on-air. They clash fiercely; Hayan ultimately overcomes Ash’s life-drain by sheer power and mental fortitude. In sum, Ash’s relationship with Hayan is pure conflict: colleague-turned-impersonator and executioner. There is no trust or alliance – only enmity. A hint of tragedy colors their enmity: Ash once adored the friend whose identity she took, and Hayan often shows pity that anyone could commit such deeds. However, given Ash’s refusal to stop her crusade, Hayan shows Ash no mercy. By narrative’s end, their confrontation is resolved decisively with Hayan triumphing, while Ash’s tortured backstory remains her sole tragic mark.

Levi (Yun Jeong-a) Levi is a 24-year-old vampire and Yohan Seo’s devoted secretary/lover. Unlike the pureblood protagonists (Hayan, Euntae) and fearsome Angels (Ash, Vael), Levi is a tragic, secondary antagonist driven by personal trauma and loyalty. She was rescued from abuse by Yohan and remains fiercely devoted to him (willing to carry out his assassination orders). In contrast to Father Michael’s protective love or Euntae’s justice-driven heroism, Levi’s love is unrequited; she seeks Yohan’s praise even as he is obsessed with Hayan. Levi’s powers are modest (telepathy and enhanced strength) compared to others, and her role is to oppose Hayan at Yohan’s behest. Role: Levi is Yohan’s secretary and lover, an emotionally damaged vampire who carries out his orders and nearly sacrifices herself to prove her loyalty.

Backstory Levi (Korean name Yun Jeong-a) grew up under severe domestic abuse. She had no mother and her alcoholic father beat her mercilessly, making her childhood “hell-like”. Despairing, Levi attempts suicide by jumping off a bridge. Yohan Seo happens to save her life, urging her not to die. This encounter profoundly binds her to Yohan. Grateful and in love with her savior, Levi pledges loyalty to Yohan. Over time, she becomes his personal secretary and confidante. The Unholy Blood wiki notes she even carries out assassination missions on Yohan’s behalf, killing rebels who threaten him, motivated by the praise (“good job”) she receives. Presumably, Yohan also turns her into a vampire (the timeline implies she gains vampiric strength and telepathy) so she can serve him fully; officially she is listed as a vampire of age 24. Levi thus evolves from a desperate girl into a fanatic follower, shaped by Yohan’s influence and her own trauma.

In White Blood, Levi’s key life events revolve around Yohan and Hayan. After becoming Yohan’s right-hand, she remains fixated on pleasing him. During the vampire “Warrior” period, Levi functions largely off-screen as an assassin for Yohan. When Hayan’s mission directly threatens Yohan, Levi is sent to confront Hayan. According to sources, when Levi finally battles Hayan, her motives are twofold: to gain Yohan’s approval and, confusingly, to eliminate Hayan (whom Levi knows Yohan secretly admires). In that fight, Levi nearly loses: as Hayan overpowers her, Levi throws herself off a cliff in apparent despair. Yohan once again saves her (symbolically mirroring their first meeting) and tells her “because you are like me,” recognizing their shared abused past. In that moment, Levi realizes Yohan cares for her as a fellow victim, but her romantic hopes are crushed – he suggests she live a good life apart from him. This confrontation frees Levi emotionally. By the story’s end, in the epilogue she is shown traveling the world helping others in distress (a redemptive arc).

Levi’s motivations stem from trauma and unrequited love. She yearns for Yohan’s approval – her loyalty is driven by gratitude and obsessive devotion. Levi is painfully aware that Yohan’s affections lie elsewhere; the wiki implies she holds platonic (or deeper) feelings but fears admitting he thinks only of Hayan. Levi is not innately evil; rather, she was molded by abuse and by Yohan’s saving her life. Her abilities reflect her background: she has moderate vampire strength and a psychic edge. The Unholy Blood wiki notes Levi can read minds and is stronger than normal humans, though “not extremely strong” – enough to hold her own against an Angel of Death in one fight. Unlike purebloods or elite angels, she has no flashy powers. Levi’s evolution over the series is one of tragic self-discovery: from self-hating victim to devoted guardian of Yohan, to a woman who comes to terms with her own worth beyond Yohan’s obsession.

Relationship with Park Hayan Levi’s relationship with Hayan Park is strictly antagonistic. They have no personal history before their clash; Levi knows Hayan only as “the pureblood girl” entangled with Yohan. When Levi and Hayan fight, it is in the context of war: Levi has orders to stop or kill Hayan for Yohan. The wiki notes that in combat Levi is driven by the desire to please Yohan and acknowledges the awkward fact that Yohan seems to care about her only as one of the abused victims. We do not have official script quotes of their duel, but it is clear from Levi’s backstory that she attacks Hayan fiercely. For example, Levi nearly defeats Hayan (she resorts to suicide rather than surrender), showing she did not underestimate Hayan. Unlike other relationships, there is no alliance or friendship to salvage – Levi and Hayan are enemies until Levi’s near-defeat. After Levi’s suicide attempt and rescue, there is no reconciliation scene with Hayan depicted; Levi disappears from the story. According to the wiki, by the epilogue Levi is gone, unmentioned by Hayan, implying their conflict ends without Hayan influencing Levi’s fate.

Emotionally, Levi sees Hayan as both rival and idol. Levi fights Hayan partly out of jealousy (she notices Yohan’s hidden concern for Hayan) and partly out of hatred. Hayan, for her part, likely views Levi as another fanatic to defeat. The primary interaction highlighting their dynamic is the final battle: Levi shows an intense fear of failing Yohan, whereas Hayan demonstrates mercy (she lets Levi flee rather than deliver a killing blow). After Levi jumps, Hayan does not appear to pursue, suggesting a grudging respect or pity. Their relationship does not evolve – it ends with Levi’s survival as a wounded follower. Since Levi ultimately leaves with Yohan’s help, Hayan’s impact on her is limited. In summary, Levi’s ties to Hayan are those of adversaries on opposite sides; they clash only in battle, and Levi’s loyalty to Yohan – not any personal connection to Hayan – defines their interaction.