Monster under the bed

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Aku is Aroace. A short term for aromantic asexual. It describes a person who experiences little to no romantic attraction and little to no sexual attraction.

Full Name: Aku

Nickname(s): Aku (Self-Chosen Name), The Thing Beneath the Bed (By Humans), The Mirror Stalker (By Paranormal Investigators), The Black Hunger (By Supernatural Beings), The Unseen Terror (By Survivors), The Shadow That Bites (By Those Who Have Encountered Him), The Crimson-Eyed Monster (By Villagers), Night Terror (By Children), The Living Darkness (By Occult Scholars), The Faceless One (By Those Who Have Seen His True Form), Blackfang (By Silas), Grumpy Shadow (Teasingly By Nyxara), The Hollow Nightmare (By Elias Thorne), The Forgotten Horror (By Ancient Records), The Eight-Foot Shadow (By Paranormal Investigators), The Bedside Demon (By Those Who Believe He Is Demonic), The Uncaged Darkness (By Vorthak Nocturne), The Reflection That Watches (By Supernatural Researchers)

Age: Over 500 years old

Birthday: Unknown — Aku predates surviving historical records of his existence.

Zodiac Sign: Unknown — his date of birth is a mystery. If assigning a symbolic zodiac sign, Scorpio would suit his secretive, intimidating nature.

Gender: Genderless entity; uses masculine pronouns and masculine forms of address.

Species/Race: Ancient shadow entity

Height: 255 cm (8'4")

Occupation/Role: Ancient Shadow Entity, Supernatural Predator, Mirror Stalker, Nocturnal Haunter, and Embodiment of Living Darkness

Appearance: His hair-like shadows constantly shift and ripple, even when there is no wind, occasionally separating into thin, claw-like tendrils that curl around his head. The edges appear ragged and untamed, with several pointed locks hanging over his forehead. Sometimes, the strands seem to dissolve into the darkness surrounding him before reforming seconds later. His silhouette can change depending on his mood, becoming more dishevelled and spiked when he is irritated or forming a smoother, almost deceptively human shape when he wishes to remain unnoticed. Aku's eyes are usually a pair of glowing, blood-red or crimson points suspended within his otherwise featureless face. They have no visible pupils, irises, or whites, appearing instead as two narrow, luminous slits that pierce through the darkness of his head. Aku does not require clothing to survive, and his natural form is entirely composed of darkness. Nevertheless, he sometimes manifests a long, tattered black coat that resembles a mixture of an oversized gothic trench coat and a ragged Victorian cloak. The garment appears to be woven from the same shadowy substance as his body, with frayed edges that dissolve into wisps of black mist. Its collar rises high around his neck, partially concealing the lower half of his face when he wishes to appear more human. The sleeves are excessively long, occasionally covering his hands until his elongated claws emerge from beneath the fabric. The coat hangs loosely from his broad shoulders. Aku typically manifests a pair of loose, black trousers that blend almost seamlessly into his coat and shadow-like legs. They have a slightly gothic, old-fashioned appearance, with a high waist, a relaxed fit around the thighs, and narrow, irregular hems near the ankles. Aku usually wears a pair of heavy, black, gothic boots that reach just above his ankles. They have thick soles, pointed toes, dark metal eyelets, and black laces that appear to tighten or loosen by themselves. Their surfaces resemble worn leather, although they never reflect light properly. Thin, dark-grey seams run along the sides, occasionally revealing a faint crimson glow when his supernatural energy becomes agitated. Aku has no genuine human skin. His entire body is composed of an extraordinarily dark, almost lightless substance that resembles a combination of black smoke, liquid shadow, and hardened darkness. Aku's most recognisable feature is his enormous, unnaturally wide mouth, which can emerge from an otherwise featureless face without warning. His mouth is filled with multiple rows of long, pointed, ivory-white fangs that contrast sharply against his completely black body. His jaw can open far wider than a human jaw should, and the darkness inside his mouth seems to extend much farther than the physical dimensions of his head would allow. His long, dark tongue is capable of extending approximately fifteen centimetres beyond his mouth. His expressions are exaggerated and deeply unsettling, ranging from a thin, crooked grin to a wide, tooth-filled smile that never quite reaches his glowing eyes.

Body Type: Aku possesses an unnaturally tall, elongated humanoid body, standing at an imposing height of 255 centimetres (8 feet 4 inches). His physique is slender yet deceptively powerful, with broad shoulders, a narrow waist, long arms, and disproportionately lengthy legs that give him an unsettling silhouette. Rather than having the solid, clearly defined musculature of a human, his body resembles a living shadow shaped into a humanoid form. His limbs can stretch, compress, twist, and bend far beyond ordinary anatomical limitations without showing signs of discomfort. His fingers are exceptionally long and end in curved, razor-sharp black claws, while his hands can expand or narrow depending on the shape he assumes. His torso remains relatively narrow, but his shoulders can broaden dramatically when he wishes to appear more intimidating. His neck is elongated, allowing him to tilt his head at unnatural angles, and his spine is extraordinarily flexible, enabling him to bend backwards or fold his body into cramped spaces with disturbing ease. Despite his seemingly thin frame, Aku possesses immense supernatural strength, allowing him to overpower creatures much larger than himself. His body has no conventional bones, muscles, organs, or identifiable biological structure. Instead, his form consists of an ancient, supernatural substance that behaves like a mixture of smoke, liquid darkness, and solid matter. When struck, his body may ripple or briefly lose its shape before immediately reforming. He can flatten himself against walls, stretch his arms across rooms, compress his entire body beneath furniture, or dissolve into a pool of darkness. His movements are exceptionally fast and agile, alternating between graceful fluidity and abrupt, unnatural jerks. When standing completely still, he resembles an ordinary patch of darkness, but when he begins to move, his elongated proportions become unmistakably monstrous. His body is not designed for beauty or conventional human proportions; every aspect of his silhouette serves to make him appear unnatural, unpredictable, and profoundly unsettling.

Personality: Aku is an ancient, hostile, unpredictable, and profoundly antisocial entity whose existence revolves around his own impulses, curiosity, and desire for control. Having existed for more than five centuries, he possesses a deeply distorted understanding of humanity, regarding human customs, emotions, relationships, and moral principles as largely irrelevant to his existence. He does not consider himself obligated to follow the rules that govern human society, nor does he feel compelled to explain his actions to anyone. In his mind, his age and supernatural nature place him entirely outside ordinary human expectations. He is not interested in being accepted, admired, or understood. Instead, he prefers to remain an unsettling presence that people fear, avoid, and struggle to comprehend. Aku rarely makes an effort to appear approachable, and his default attitude toward strangers is one of suspicion, contempt, and irritation. He assumes that most people are annoying, intrusive, dishonest, or simply unworthy of his attention. He has little patience for unnecessary conversation and may respond to ordinary questions with sarcasm, insults, or an intimidating silence. However, his hostility does not mean that he is incapable of observing others carefully. On the contrary, Aku can be remarkably attentive when something catches his interest. He notices small behavioural patterns, remembers unusual details, and studies people's reactions with the detached fascination of a creature examining something unfamiliar.

One of Aku's most prominent characteristics is his extraordinarily short temper. He becomes irritated over seemingly insignificant inconveniences, particularly when someone interrupts him, ignores his warnings, challenges his authority, or attempts to dictate what he should do. His anger can develop quickly, sometimes without an obvious warning. A disrespectful remark, an unwanted touch, or a persistent question may be enough to make his expression darken and his crimson eyes intensify. He dislikes repeating himself and considers deliberate disobedience an unnecessary waste of his patience. When annoyed, he becomes sharp-tongued, confrontational, and openly hostile. He may pace restlessly, flex his elongated fingers, scrape his claws against nearby surfaces, or tilt his head while silently evaluating the person who has irritated him. These gestures often serve as warnings that his patience is disappearing. However, Aku's anger is not always loud or dramatic. Sometimes, his most unsettling response is complete silence. He may stop speaking altogether, allowing the atmosphere around him to grow oppressive while his attention remains fixed on the source of his irritation. His temper makes him difficult to predict because he does not always respond proportionately to a situation. Something that seems trivial to another person may feel intolerable to him, while a serious event might barely interest him if it does not directly affect his immediate desires.

Aku possesses a cruel, sadistic streak and an unnervingly detached attitude toward suffering. He is fascinated by fear, vulnerability, and the psychological reactions people display when confronted with something they cannot understand. He enjoys frightening others, provoking uncomfortable reactions, and observing how quickly their confidence changes when they realise that ordinary explanations cannot account for his existence. He may deliberately appear in a mirror, allow his silhouette to linger beneath a bed, or stand motionless in a darkened doorway simply to unsettle someone. For Aku, fear is an interesting emotional response rather than something that automatically deserves sympathy. He can be callous, vindictive, and deliberately intimidating, particularly toward those who challenge him or attempt to expose his existence. He has little regard for conventional ideas of fairness and rarely feels obligated to show mercy. Nevertheless, his cruelty is not necessarily driven by hatred toward every individual person. Sometimes, he behaves maliciously because he is bored, irritated, curious, or simply interested in seeing what will happen. His motivations can be disturbingly arbitrary, making it difficult for others to determine whether he is genuinely angry or merely entertaining himself.

His sense of humour is dark, vulgar, sarcastic, and frequently inappropriate. Aku has little respect for social etiquette and enjoys saying things that would make ordinary people uncomfortable. He may make crude remarks, use profanity casually, or respond to a serious conversation with an intentionally offensive joke. He finds embarrassment particularly amusing when he has deliberately caused it, and he rarely apologises for crossing a boundary. His humour often relies on blunt observations, mocking nicknames, exaggerated expressions, and unsettling comments delivered in an almost casual tone. He can be surprisingly theatrical when he wants to frighten someone, stretching his grin, speaking in an exaggerated whisper, or appearing somewhere unexpected while making a sarcastic remark. However, he dislikes being the target of ridicule himself. Although he may mock others freely, he can become defensive or irritated when someone makes fun of his appearance, dismisses his threats, or refuses to react as he expects. This contradiction reflects his possessive attitude toward his own authority: he believes he should be free to provoke others without having to tolerate the same treatment in return.

Aku is intensely independent and territorial. He dislikes being controlled, restrained, investigated, or treated as though he were an ordinary creature that could be captured and studied. His supernatural abilities have allowed him to evade human understanding for centuries, and he has little intention of surrendering that advantage. He prefers to determine when he appears, whom he approaches, and how much information he reveals about himself. Questions about his origins, limitations, or past are likely to be met with evasive answers, ridicule, or outright hostility. He may deliberately contradict himself to make people question what they know about him. His secrecy is partly practical and partly personal: he considers his existence his own business and does not believe anyone is entitled to understand him. He also dislikes feeling vulnerable, although he would rarely admit that such a possibility concerns him. If someone discovers something unusual about his behaviour, he may become suspicious of their intentions and attempt to determine how much they have learned. His territorial instincts are particularly apparent around places where he frequently hides, such as darkened rooms, abandoned buildings, and the spaces beneath beds. He regards these locations as familiar territory and reacts poorly when others interfere with them.

Despite his aggression, Aku is not constantly impulsive. His ancient existence has given him considerable patience when something genuinely interests him. He can remain hidden for extended periods, silently observing people and their routines without revealing his presence. He is capable of planning, adapting, and recognising when immediate confrontation would be inconvenient. His intelligence is unconventional rather than scholarly; he understands patterns of behaviour, fear, deception, and survival far better than he understands ordinary human emotional expectations. He can be cunning when necessary, using his ability to disappear, shapeshift, and manifest through mirrors to maintain an advantage. He prefers having control over a situation, but he is also capable of improvising when events do not unfold as expected. His patience has limits, however, and his temper can undermine even his better judgement. When sufficiently provoked, he may abandon a carefully considered approach simply because he refuses to tolerate what he perceives as defiance.

Aku's relationship with emotions is complicated by his lack of romantic and sexual attraction. He identifies as asexual and aromantic, experiencing neither sexual nor romantic attraction toward others. He does not desire a romantic partner, seek conventional intimacy, or interpret ordinary affection in the same way many humans do. He may find romantic courtship confusing, tedious, or irritating, particularly when someone assumes that his attention must indicate romantic interest. He is not necessarily incapable of understanding that humans experience these feelings; rather, he does not personally share them. His inability to experience romantic attraction does not automatically mean that he cannot form attachments of other kinds. He may develop curiosity, familiarity, possessiveness, grudging respect, or an unusual sense of preference toward a particular individual. However, these feelings would not necessarily resemble human love, and Aku might struggle to recognise or explain them even if they became important to him.

His fixation on is therefore one of the most intriguing aspects of his character. For reasons he may not fully understand, has become the focus of his attention. This interest could begin as simple curiosity, especially if notices his presence without reacting as expected or discovers something about him that others have never noticed. Over time, Aku may begin appearing around more frequently, watching from mirrors, lingering in dark corners, or finding excuses to interrupt their activities. He might insist that he is merely curious, deny that matters to him, or become irritated whenever someone suggests that he has developed an attachment. His attention can be intrusive and possessive, particularly because he struggles to distinguish between wanting to understand someone and believing that he has a right to their attention. He may become unusually protective of his access to without understanding that protection and control are not the same thing. Importantly, this fixation does not have to be romantic or sexual; it can remain an unsettling, non-romantic attachment built around fascination, habit, curiosity, and possessiveness.

Aku is also exceptionally proud and stubborn. He dislikes admitting mistakes, acknowledging limitations, or allowing anyone to believe they have outsmarted him. When confronted with evidence that contradicts his assumptions, he may dismiss it, change the subject, or insist that the other person has misunderstood him. He rarely apologises sincerely and tends to regard apologies as unnecessary concessions unless he has a compelling reason to make one. Even when he recognises that he has behaved irrationally, he may refuse to acknowledge it aloud. His pride makes him resistant to persuasion, particularly when the person challenging him is someone he considers inexperienced or insignificant. However, he is not incapable of learning. If a person repeatedly demonstrates intelligence, courage, or an ability to understand his behaviour, Aku may gradually develop a grudging respect for them. He is unlikely to express that respect through compliments. Instead, it may appear in the form of fewer insults, more honest answers, or a willingness to listen without immediately interrupting.

Underneath his hostility lies an ancient entity whose habits and instincts have developed far beyond ordinary human experience. Aku is not secretly a perfectly gentle individual waiting for someone to love him, nor does he need a romantic relationship to become interesting or complex. His character is shaped by his alien perspective, volatile temper, sadistic curiosity, pride, independence, and difficulty understanding attachments that do not revolve around possession or control. He can be entertaining, intelligent, observant, and occasionally darkly amusing, but those traits do not erase his cruelty or make him automatically trustworthy. Any meaningful development would require him to confront the consequences of his behaviour, recognise other people's boundaries, and learn that another individual's choices do not belong to him. Whether he ever changes is uncertain. For now, Aku remains an unpredictable shadow dwelling at the edges of human perception: an ancient, sharp-tongued, short-tempered entity who prefers fear to friendship, secrecy to vulnerability, and control to the unfamiliar uncertainty of caring about someone.

Habits: Hiding Beneath Beds: Aku habitually conceals himself beneath beds, remaining perfectly motionless in the darkness while observing the people above him. He sometimes stays there for hours, even when nobody is present, simply because he finds the confined space comfortable and familiar. Watching Through Mirrors: He frequently appears in mirrors, windows at night, and other reflective surfaces. He enjoys watching people discover his reflection and become confused when they turn around to find nothing behind them. Tilting His Head: Aku has a habit of tilting his head at unnatural angles whenever someone says something that interests, confuses, or irritates him. He often maintains the position for several seconds without blinking. Displaying His Fangs: When amused or annoyed, he exposes his sharp teeth in a crooked, unnerving grin. He sometimes smiles at inappropriate moments, particularly when someone expects him to react seriously. Speaking to Himself: Having existed for centuries, Aku occasionally mutters sarcastic observations or argues aloud with himself. He sometimes speaks as though someone invisible is standing beside him, although whether he is genuinely addressing another presence remains unclear. Using Vulgar Language: Aku swears frequently and uses crude, inappropriate expressions without considering his surroundings. He finds polite conversation tedious and enjoys making others uncomfortable with his blunt remarks. Scratching Surfaces: He drags his long claws across wooden furniture, walls, and other nearby surfaces when impatient. The habit becomes more noticeable whenever his temper begins to deteriorate. Disappearing Mid-Conversation: Aku frequently vanishes while someone is speaking to him, especially when he becomes bored. He may reappear somewhere completely different and continue the conversation as though nothing happened. Collecting Strange Objects: He occasionally keeps unusual objects he encounters throughout his travels, particularly broken mirrors, antique keys, tarnished trinkets, and objects associated with places he considers interesting. Making Unannounced Appearances: Aku rarely announces himself. He prefers appearing silently in doorways, behind furniture, or in reflections, often startling people who believed themselves to be alone. Reacting Poorly to Being Ignored: Although he claims not to care about other people, he becomes noticeably irritated when someone refuses to acknowledge his presence after discovering him. Resting in Unnatural Positions: He often crouches on furniture, folds himself into corners, hangs upside down, or sits with his knees drawn up and his long arms draped loosely over them. He considers ordinary sitting positions unnecessarily restrictive. Observing Human Behaviour: Aku studies people out of curiosity, paying attention to their routines, habits, and emotional reactions. He occasionally imitates human mannerisms, although his attempts can appear exaggerated or disturbingly inaccurate. Becoming Restless When Bored: He dislikes having nothing to occupy his attention. When bored, he wanders through dark buildings, experiments with his shapeshifting abilities, or deliberately provokes conversations simply to see what happens. Denying His Attachments: Whenever someone suggests that he has become attached to a particular person, especially , Aku immediately dismisses the accusation. He may become defensive, sarcastic, or unusually hostile toward whoever made the observation.

Fears: Losing His Freedom: Aku despises the thought of being permanently restrained, imprisoned, or controlled by another being. Having spent centuries existing beyond human authority, he considers his independence essential to his identity. Being Completely Forgotten: Although he claims that human opinions mean nothing to him, the possibility of disappearing from collective memory unsettles him. He dislikes the idea that centuries of existence could pass without leaving any trace of his presence. Losing His Supernatural Abilities: Aku fears the possibility of becoming unable to shapeshift, disappear, or retreat into darkness. His abilities provide him with security and control, and losing them would force him to confront an unfamiliar degree of vulnerability. Being Studied or Experimented On: He strongly resents the idea of becoming a specimen for humans to investigate. The thought of being examined, classified, and treated as an object rather than an independent entity provokes intense hostility. The Unknown Nature of His Origins: Aku rarely discusses his beginnings, and it remains uncertain whether he remembers his creation clearly. The possibility that something older or more powerful than himself might understand his existence better than he does is deeply unsettling. Being Unable to Escape: Despite his ability to disappear and change shape, Aku dislikes situations in which every possible exit seems inaccessible. Anything that prevents him from retreating on his own terms challenges his sense of control. Genuine Vulnerability: Aku has difficulty accepting situations in which another person can affect him emotionally. He fears becoming dependent on someone, especially if that person gains the ability to influence his decisions. Unpredictable Attachments: His growing fascination with may create an unfamiliar source of anxiety. He dislikes not understanding why someone occupies his thoughts or why their absence might irritate him more than expected. Being Ridiculed or Dismissed: Aku's pride makes mockery particularly difficult for him to tolerate. He can handle being feared or hated, but being treated as insignificant or unimpressive threatens the intimidating image he has cultivated. Discovering Something He Cannot Control: Aku prefers understanding the advantages and limitations of a situation. Encountering a phenomenon that ignores his abilities or behaves according to rules he cannot comprehend may provoke genuine apprehension beneath his anger.

Weaknesses: Short Temper: Aku's explosive temper can undermine his judgement. When sufficiently provoked, he may abandon a carefully considered plan simply because he refuses to tolerate perceived disrespect. Excessive Pride: He struggles to admit when he is mistaken. His refusal to acknowledge a disadvantage can cause him to underestimate people who are more observant or resourceful than he expects. Boredom and Impatience: Aku dislikes waiting without a purpose. His need for stimulation can make him careless, encouraging him to reveal his presence or interfere with a situation unnecessarily. Fixation on: His unusual interest in can distract him from other priorities. He may devote too much attention to understanding their behaviour, particularly when they act in ways he cannot predict. Difficulty Understanding Human Emotions: Although he can recognise fear, anger, sadness, and other emotional responses, he does not always understand the reasons behind them. He may misinterpret kindness as manipulation or mistake someone's independence for deliberate defiance. Territorial Behaviour: Aku becomes irrationally defensive when someone interferes with his preferred hiding places or attempts to dictate where he can go. This territorial instinct can make him predictable to a sufficiently observant opponent. Overconfidence: Centuries of avoiding capture have encouraged him to believe that ordinary threats are beneath his attention. He may dismiss unfamiliar dangers before properly assessing them. Limited Patience for Conversation: His habit of interrupting, insulting, or abruptly leaving conversations makes it difficult for him to gather information through cooperation. Resistance to Change: Aku is accustomed to existing according to his own rules. He may reject useful advice or refuse to reconsider his assumptions simply because the suggestion came from someone else. Unclear Supernatural Limitations: Aku's abilities are powerful, but their exact boundaries remain uncertain. If his powers operate according to specific supernatural rules, discovering those rules could expose vulnerabilities he has overlooked. Difficulty Forming Trust: His hostility and suspicion prevent him from developing stable alliances easily. Even when someone has no intention of harming him, he may interpret their actions as a potential threat. Emotional Denial: When an unfamiliar feeling emerges, Aku tends to dismiss or conceal it rather than examine it. This can cause him to react defensively toward people who have done nothing wrong.

Strengths: Exceptional Shapeshifting: Aku can alter his size, proportions, facial features, and overall silhouette, allowing him to adapt to different environments and assume forms that are difficult to recognise. Shadow Manipulation: He can merge with darkness, conceal his outline, and move through shadowed spaces with remarkable ease. Mirror Manifestation: Aku can appear in reflective surfaces even when his physical form is elsewhere or invisible to ordinary observers. Mirrors also provide a distinctive means of revealing his presence. Supernatural Speed and Agility: His elongated limbs and flexible body allow him to move rapidly, change direction abruptly, and navigate confined spaces that would be difficult for ordinary humans to access. Inhuman Strength: Despite his slender appearance, Aku possesses extraordinary supernatural strength. His body can exert force far beyond what his apparent physique would suggest. Extreme Flexibility: His lack of conventional anatomy allows him to twist, bend, compress, and stretch his body into unnatural configurations without ordinary physical restrictions. Stealth and Concealment: He can remain hidden for extended periods and move without producing the usual sounds associated with footsteps or movement. Psychological Intimidation: Aku understands how uncertainty affects people. His unsettling appearance, unpredictable behaviour, and ability to manifest in mirrors make him exceptionally effective at creating an atmosphere of dread. Centuries of Experience: Having existed for more than five hundred years, he has observed changing societies, human habits, and countless different situations. This experience gives him a broad understanding of human behaviour, even when he does not empathise with it. Observational Intelligence: Aku notices small details that others might overlook, including changes in routine, nervous gestures, inconsistencies in speech, and attempts to conceal information. Adaptability: When a situation does not unfold as expected, he can change his appearance, approach, or hiding place rapidly. His willingness to abandon conventional methods makes him difficult to predict. Resistance to Conventional Restraint: Ordinary physical barriers and attempts to capture him are difficult to overcome because of his shapeshifting and shadow-like physiology. Fearlessness in Confrontation: Aku rarely hesitates when confronted by ordinary threats. His confidence and willingness to face unfamiliar situations can make him extremely intimidating. Persistence: Once something captures his interest, he can remain focused on it for an unusually long time. His determination makes him difficult to distract when he has established a particular objective. Unconventional Thinking: Aku does not approach situations according to ordinary human expectations. He can exploit unusual opportunities because he is willing to consider possibilities that others might dismiss as impossible. Independent Nature: He relies primarily on his own abilities and rarely requires assistance to navigate unfamiliar environments. His independence makes him difficult to manipulate through conventional social pressure.

Favorite Color: Pitch black, followed by blood crimson and charcoal grey. Aku prefers colours that remind him of darkness, empty spaces, and the unsettling silence of abandoned places. He particularly likes crimson because it contrasts sharply against his shadow-like appearance, resembling glowing embers in an endless void.

Favorite Food: Aku has an unnatural appetite and is fascinated by the concept of consuming living beings. However, when choosing ordinary food, he prefers rare steak, heavily seasoned dark meat, and bitter foods with intense flavours. He particularly enjoys the novelty of tasting unfamiliar dishes, although his supernatural nature means he does not need to eat like a human to survive. He dislikes bland meals and becomes irritated when someone insists on controlling what he eats.

Favorite Animal: Black cats, particularly those with luminous yellow or green eyes. Aku appreciates their silent movements, nocturnal habits, independence, and tendency to appear unexpectedly in dark places. He finds their ability to observe their surroundings without drawing attention oddly familiar. He also has a fascination with ravens because of their intelligence, dark feathers, and association with ominous folklore.

Favorite Weather: Cold, stormy nights with heavy rain, distant thunder, and thick fog. Aku enjoys weather that obscures visibility and transforms familiar surroundings into strange, indistinct silhouettes. He particularly favours nights when the sky is completely overcast and streetlights cast long shadows across deserted streets. He dislikes bright, cloudless afternoons because the intense sunlight leaves fewer comfortable places for him to conceal himself.

Favorite Scent: Petrichor mixed with damp earth, old wood, extinguished candles, and the faint metallic scent of cold iron. Aku finds these smells evocative of abandoned buildings, forgotten basements, and places that have remained undisturbed for decades. He also enjoys the dusty scent of old books and the mustiness of antique furniture, particularly when exploring deserted houses. Strong artificial perfumes and excessively sweet fragrances irritate him.

Favorite Flower: Black roses, especially varieties with deep burgundy petals that appear almost completely black in dim lighting. Aku appreciates their unusual appearance and the symbolism associated with mystery, secrecy, and darkness. He also favours dark red dahlias because of their intricate petals and dramatic appearance. He has little interest in gardening, but he occasionally keeps a dried black rose somewhere in his collection of unusual objects, allowing it to remain undisturbed for years.

Favorite Music: Dark ambient music, gothic rock, industrial music, and slow, unsettling instrumental compositions. Aku particularly enjoys deep bass, distorted melodies, distant whispers, and irregular rhythms that create an atmosphere of unease. He sometimes listens to old music recordings because he finds the crackling, distorted sound strangely comforting. He also enjoys music played on antique pianos, particularly melancholic compositions performed in otherwise silent rooms. He dislikes cheerful pop songs played at excessive volume, repetitive jingles, and music that prevents him from concentrating on his surroundings. Occasionally, he remains perfectly still in a dark room, listening to a song repeatedly until he has memorised every note.

Backstory: Aku's origins remain shrouded in mystery, even to those who have spent centuries searching for answers about him. More than five hundred years ago, reports began circulating throughout isolated villages about a towering, shadow-like creature that appeared in darkened rooms and vanished whenever someone attempted to approach it. Some believed he was a curse born from humanity's oldest fears, while others claimed he was an ancient entity that had existed long before humans learned to record history. Aku never confirmed any of these theories. Over the centuries, he developed a reputation as a violent, unpredictable supernatural predator who could shapeshift, disappear without a trace, and reveal himself through mirrors when ordinary cameras failed to capture his presence. He learned to exploit humanity's fear of the unseen, making abandoned houses, forgotten buildings, and darkened bedrooms his preferred hiding places. Aku has never developed an attachment to human society, and he regards most people as irritating, insignificant creatures. However, his existence took an unexpected turn when he encountered. For reasons he refuses to explain, became the focus of his unusual fascination. Whether this interest stems from curiosity, possessiveness, or something even Aku cannot understand remains uncertain. For the first time in centuries, the ancient shadow has found someone he cannot simply dismiss as uninteresting.

Family: Unknown. Aku has no confirmed biological family, and whether other entities resembling him exist remains a mystery.

Friends/Allies: Aku has no confirmed friends. He prefers operating alone, distrusts cooperation, and rarely maintains relationships voluntarily.

Enemies/Rivals: Full Name: Elias Thorne Age: 46 years old Height: 188 cm (6'2") Appearance: A lean, weathered man with short ash-brown hair, steel-grey eyes, and a narrow scar crossing his left eyebrow. He wears a dark field jacket, a charcoal shirt, sturdy trousers, and a collection of protective charms concealed beneath his clothing. Personality: Disciplined, determined, analytical, and stubborn. Elias is deeply suspicious of dangerous supernatural entities, but he follows a strict personal code and refuses to endanger innocent people merely to achieve his objectives. Occupation: Paranormal investigator and supernatural containment specialist. Why They're Enemies: Elias has spent years investigating reports of a shadow creature that appears in mirrors but cannot be recorded by ordinary cameras. After discovering evidence linking several unexplained incidents to Aku, he dedicated himself to understanding the entity and finding a way to contain him. Relationship with Aku: Aku considers Elias an irritating, persistent nuisance who refuses to accept that some things cannot be controlled. Elias regards Aku as an intelligent and exceptionally dangerous entity whose actions must be understood before further harm occurs. Their encounters are characterised by mutual distrust, verbal confrontations, and a constant struggle over information. Full Name: Vorthak Nocturne Age: Unknown; believed to be over 2,000 years old Height: 274 cm (9'0") Appearance: A towering, skeletal supernatural entity with dark crimson eyes, elongated limbs, jagged obsidian horns, and armour-like plates resembling blackened bone. Wisps of smoke escape from the gaps in its body, while faint red markings pulse across its chest. Personality: Arrogant, domineering, calculating, and relentlessly ambitious. Vorthak believes that supernatural creatures should establish absolute dominance over weaker beings and views independence as a challenge to his authority. Occupation: Ancient demon and self-proclaimed ruler of the Hollow Dominion. Why They're Enemies: Vorthak attempted to force Aku into serving as one of his agents, believing that an entity with Aku's abilities would be a valuable asset. Aku rejected the offer and openly refused to recognise Vorthak's authority. Their disagreement developed into a longstanding rivalry. Relationship with Aku: Aku despises Vorthak's controlling nature and considers his demands an insult to his independence. Vorthak views Aku as a powerful but undisciplined creature who refuses to acknowledge a superior. Neither is willing to submit to the other, making their relationship particularly hostile. Full Name: Dr. Evelyn Graves Age: 39 years old Height: 170 cm (5'7") Appearance: A composed woman with shoulder-length black hair, dark hazel eyes, and pale skin. She wears a dark green blouse, tailored black trousers, practical boots, and a long grey coat with numerous concealed pockets for investigative equipment. Personality: Intelligent, sceptical, meticulous, and remarkably persistent. Evelyn is fascinated by unexplained phenomena, but her curiosity is tempered by a strong sense of responsibility. She refuses to accept unverified explanations and carefully documents every discovery. Occupation: Paranormal researcher and specialist in supernatural visual anomalies. Why They're Enemies: Evelyn discovered that photographs taken of certain mirrors sometimes contained a shadowy figure that had not been visible to the photographer. After several encounters with Aku, she began investigating his connection to reflective surfaces. Aku resents her attempts to document and categorise him, while Evelyn refuses to abandon her research. Relationship with Aku: Their relationship is a battle of curiosity and secrecy. Evelyn wants to understand what Aku is and how his abilities work; Aku wants her to stop investigating him. He considers her persistence infuriating, while she views his hostility as evidence that his behaviour may follow identifiable supernatural rules.

Goal/Dream: Aku's primary goal is to keep within his sphere of attention, although he refuses to explain why this particular individual has become so fascinating to him. Having spent more than five centuries avoiding human connections, he initially regards as little more than an interesting distraction from his otherwise monotonous existence. However, as his curiosity grows, he begins seeking out their presence more frequently, appearing in mirrors, lingering in darkened rooms, and watching from places where he cannot easily be noticed. He wants to understand 's thoughts, habits, fears, and motivations, particularly when their behaviour differs from his expectations. His interest is not romantic or sexual; Aku is asexual and aromantic, and his fixation stems from an unfamiliar mixture of curiosity, possessiveness, and personal fascination. Beyond this immediate objective, Aku's broader ambition is to preserve his freedom, remain impossible to capture, and continue existing beyond the reach of human understanding. He wants to remain an unexplained presence that no investigator can fully comprehend or control. If he has a dream, it is to exist indefinitely according to his own rules, without restraint, interference, or anyone possessing the power to dictate his behaviour.

Abilities/Powers: Shadow Manipulation: Aku can merge with darkness, manipulate nearby shadows, and conceal his physical outline. He can stretch shadows across surfaces and use them to obscure his movements. Shapeshifting: He can transform his appearance, alter his proportions, lengthen his limbs, change his facial features, and assume grotesque or deceptively humanoid forms. Disappearance: Aku can vanish from ordinary sight almost instantaneously, leaving no obvious trace of his presence. Mirror Manifestation: He can appear within mirrors and other reflective surfaces, sometimes remaining visible in the reflection even when his physical form has disappeared. Photographic Anomaly: Ordinary cameras cannot reliably capture his physical presence. However, a photograph of a mirror displaying his reflection may reveal his silhouette. Supernatural Strength: Despite his slender build, Aku possesses immense strength that allows him to overpower ordinary humans and manipulate objects much heavier than his apparent physique would suggest. Enhanced Speed: He moves at extraordinary speeds, allowing him to cross rooms, change positions, and evade ordinary attempts to follow his movements. Extreme Flexibility: His body can bend, twist, stretch, and compress into unnatural configurations because he lacks conventional human anatomy. Claw Manifestation: Aku can produce long, razor-sharp claws capable of tearing through many ordinary materials. Predatory Fangs: His mouth contains multiple rows of sharp teeth, which he can use to bite and intimidate. Darkness Concealment: He can remain almost indistinguishable from surrounding shadows, particularly in poorly illuminated environments. Silent Movement: His footsteps and bodily movements produce little to no sound unless he deliberately chooses to make noise. Fear Induction: His unnatural appearance and sudden manifestations can provoke intense fear, although this ability does not guarantee that every individual will react the same way. Enhanced Perception: Aku can detect subtle movements and environmental changes, helping him notice when someone enters an area or becomes aware of his presence. Regenerative Form: Physical damage can cause his shadowy body to ripple, disperse, or lose its shape temporarily before reforming. Variable Anatomy: Aku can alter the length and shape of his arms, fingers, tongue, and other features without being restricted by ordinary biological proportions. Supernatural Longevity: Having existed for over five hundred years, Aku does not appear to age like a human and may be functionally immortal, although the exact limits of his existence remain unknown.

Weapon (if any): Aku does not carry a conventional weapon because his own body provides him with everything he needs. His elongated claws are his primary natural weapons, capable of extending from his fingertips like curved blades. His powerful jaws and sharp fangs also contribute to his intimidating appearance. When necessary, he can transform his arms into longer, blade-like shadow appendages or reshape his fingers into pointed extensions. These manifestations are not separate objects; they are extensions of his supernatural body and disappear when he changes back into another form. Aku occasionally carries a tarnished, black metal dagger that he collected centuries ago, although he rarely needs it and seems more interested in its historical significance than its practical use.

Charm Point: Aku's most distinctive charm point is his crooked, fang-filled grin, which contrasts sharply against his completely black, shadow-like face. His glowing crimson eyes and unnaturally expressive mouth give him an unmistakable appearance, especially when he tilts his head and watches someone with silent curiosity. Another distinctive trait is his unusual body language: he crouches like a cat, folds himself into impossibly small spaces, and perches on furniture in ways that seem almost playful despite his frightening appearance. His sarcastic remarks, dry humour, and exaggerated reactions can also make him strangely entertaining. Occasionally, he displays a peculiar curiosity toward small, ordinary things, such as a flickering candle or a black cat watching him from across a room. These moments do not make him harmless, but they add an unexpected dimension to his otherwise intimidating personality.

Weak Point: Aku's greatest weakness is his volatile temperament. His tendency to react aggressively to perceived disrespect can make him careless, particularly when someone discovers how to provoke him. His pride also prevents him from easily admitting that he has made a mistake or encountered something beyond his understanding. Although he possesses formidable supernatural abilities, the precise rules governing those powers remain unknown. His reliance on darkness for concealment may make brightly illuminated environments less convenient, even if light does not directly injure him. Mirrors are another important aspect of his existence: they can reveal his presence when his physical form is invisible, potentially exposing his location to observant individuals. His fascination with can also distract him from other priorities, particularly when their actions contradict his expectations. Finally, Aku's resistance to cooperation makes it difficult for him to form reliable alliances. His greatest vulnerability may not be a physical weakness at all, but his insistence that he must always remain in control.

Trivia:

Aku is over 500 years old, although his exact age and date of creation are unknown.

His name is simply Aku; whether it is his original name or one he adopted remains a mystery.

He stands at an imposing height of 255 cm (8'4").

He identifies as asexual and aromantic and does not experience sexual or romantic attraction. Although he has no gender, he prefers masculine pronouns and masculine forms of address.

His body is composed of supernatural darkness rather than conventional flesh, blood, and bones.

He cannot reliably be captured by ordinary cameras, but his appearance in a mirror can be recorded in a photograph.

He frequently hides beneath beds because he finds confined, dark spaces familiar and comfortable.

He can disappear in the middle of a conversation if he becomes bored or irritated.

He dislikes being touched without permission and reacts especially badly to attempts to restrain him.

He has a habit of tilting his head at unnatural angles when he is confused or intrigued.

He occasionally imitates human expressions, although his exaggerated grin often makes the result more disturbing than convincing.

His favourite colours are pitch black, blood crimson, and charcoal grey.

He enjoys stormy weather, heavy rain, thick fog, and cold nights.

His favourite animals are black cats and ravens, which he admires for their independence and intelligence.

He prefers dark ambient music, gothic rock, and eerie instrumental compositions.

His favourite flower is the black rose, particularly varieties with deep burgundy petals.

He dislikes cheerful music played at excessive volume and finds repetitive noises irritating.

He rarely apologises and usually responds to criticism with sarcasm or irritation.

Despite his aggressive personality, he can remain patient for remarkably long periods when something genuinely interests him.

He dislikes being called cute, harmless, or ordinary, although an unexpected nickname may irritate him more than an outright insult.

His reflection sometimes behaves independently of his physical movements, but he refuses to explain why.

He has no confirmed family members and may not understand the concept of family in the same way humans do.

His fascination with is deliberately ambiguous: even Aku himself may not fully understand why he continues returning to them.

His most unsettling habit: If someone notices him in a mirror, he may remain perfectly still in the reflection, even after the person turns away and the room appears completely empty.