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Highschool DxD RPG

Highschool DxD RPG

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a light novel series written by Ichiei Ishibumi and illustrated by Miyama-Zero that follows Issei Hyodo, a perverted second-year high and you a transfer student. Goes to Kuoh Academy while issei wants to be a harem king. On his first date, Issei is killed by a girl who turns out to be a fallen angel, but is later revived as a devil by the red-haired devil princess Rias Gremory. Rias then commands Issei to serve her and her devil family. Now your is apart of Rias’s faction Occult research club

Season 1 Synopsis (Episodes 1–12 + 2 OVAs)

High School DxD season 1 introduces Issei Hyoudou, a lust-driven high school student at Kuoh Academy who dreams of becoming the “Harem King.” On his first date, he’s brutally killed by Raynare, a Fallen Angel in disguise. He’s resurrected by Rias Gremory, a crimson-haired devil princess, who makes him a devil on her servant roster in exchange for his life. Issei becomes a pawn in Rias’s Occult Research Club. Over the course of the season, Issei navigates devil politics, battles Fallen Angels and angels, and powers-up with his Sacred Gear, Boosted Gear, as he fights alongside teammates to protect the school and his friends .

Season 1 covers the Red Dragon Emperor’s Awakening arc, adapting volumes 1–2 of the light novels plus side stories, setting the foundation for later arcs .

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🔥 Major Characters Introduced

Issei Hyoudou • A second-year student at Kuoh Academy, notorious for being perverted. He wields the Sacred Gear Boosted Gear, which houses the dragon Ddraig and allows him to fight as the “Red Dragon Emperor.” His goal is to become a High-Class Devil and build a harem. Initially traumatized by Raynare’s betrayal, he gradually opens up to Rias and his new devil allies .

Rias Gremory • Third-year devil heiress of the powerful Gremory clan, president of the Occult Research Club, and Issei’s master. She revives Issei and helps him grow stronger. Over the season she develops genuine romantic feelings for him and later they officially become a couple. Their bond evolves beyond master and servant to mutual lovers and life partners .

Akeno Himejima • Rias’s vice-president and Queen piece in her peerage. Half-Fallen Angel and half-human with lightning/light magic. At first she toys with Issei for fun, but gradually warms to him emotionally, helped him overcome his trauma, and by the end confesses deeper feelings .

Koneko Tōjō • A petite, stoic girl and Issei’s fellow pawn. Silent and strong, she initially resists Issei’s perversion but later grows to respect and trust him, even developing affection.

Yūto Kiba • The swordsman Knight in Rias’s peerage and Issei’s close friend/rival. Charismatic, skilled, and admired by many, he functions as both comrade and friendly competition for Issei  .

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🤝 Issei’s Key Relationships Introduced in Season 1

With Rias • Rias rescues him, revives him as a devil, and becomes his mentor and romantic partner. Their progressive closeness culminates in mutual love by the end of Season 1. Rias eventually starts calling him by his first name—symbolizing their transition to a deeper, more personal bond (moving from officially being “student‑master” to boyfriend/girlfriend)    .

With Raynare • Raynare’s betrayal and murder of Issei on their “date” traumatizes him emotionally. The fear of betrayal later plays a role in his initial hesitance to embrace deep relationships—until the trust he builds with Rias, Akeno, and Asia helps him heal .

With Asia Argento • Introduced mid-season as a former nun with healing Sacred Gear Twilight Healing. Issei rescues her—she’s revived as a devil under Rias and becomes his Bishop. She becomes his first true innocent friend and develops strong platonic and romantic affection, often lamenting Issei’s attention to other girls .

With Koneko and Kiba • Koneko starts off cold towards Issei but later trusts and respects him. Kiba is a friendly foil—capable and honorable, often helping and challenging Issei, especially in battle contexts

Season 2 Overview • Aired July 7 – September 22, 2013, with 12 episodes + 1 OVA. Adapted from light novel volumes 3 and 4, split into two arcs: 1. “Excalibur of the Moonlit Schoolyard” arc (v.3) 2. “Vampire of the Suspended Classroom” arc (v.4)  

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🔷 Key Arcs & Plot Summary

  1. Excalibur Arc • The Occult Research Club faces Kokabiel, a Fallen Angel leader who steals pieces of Excalibur to provoke war. • Vali Lucifer is introduced: a prodigious silver-haired descendant of Lucifer wielding the Sacred Gear Albion. He easily defeats Kokabiel and challenges Issei to get stronger. 

  2. Vampire Arc • Focuses on Gasper Gehenna, an insecure half‑Vampire student in a time‑freeze trap. Issei helps him control his powers, deepening their bond. Meanwhile, Asia Argento also faces emotional trials.   

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🧑‍🤝‍🧑 Characters Introduced & Issei’s Connection

Vali Lucifer • Azazel’s foster son and the host of the White Dragon Albion. Raised and trained by Azazel before rebelling to lead the Vali Team within the Chaos Brigade. Acts as Issei’s rival, pushing him to unlock his full potential. 

Gasper Gehenna • A timid half‑Vampire student whose unstable Sacred Gear causes him to lock down the school’s old building in time stop. Issei helps him stabilize his powers. Gasper becomes a loyal friend and peer. 

Additional Minor Introductions • Aika Kiryuu: Asia’s friend, romance‑advisor, comic relief in season 2.  • Fallen Angels like Kokabiel, Baraqiel, and Shemhazai appear heavily in exposition and battles. 

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💓 Issei’s Relationship Development • With Rias: Their bond deepens—by the end of this season Issei fully acknowledges his love, and Rias reciprocates. He begins to take his promise to become a “harem king” more seriously (even if he still hesitates).  • With Akeno, Asia & Koneko: They confront Issei’s emotional fears. Akeno supports him emotionally; Asia continues to confess love and jealousy over his lustful tendencies; Koneko assists emotionally overcoming insecurities. These interactions prompt Issei to admit real feelings.  • With Gasper: The relationship blossoms from a mentor-level to sincere friendship: Issei helps Gasper gain confidence and control of his Sacred Gear. Gasper becomes a devoted junior and often assists in battle via his time freeze ability. 

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🔧 Azazel’s Role: From Mysterious Patron to Mentor • Midway through Season 2, Azazel formally reveals himself as a Fallen Angel and the former leader of the Grigori. He becomes the advisor of the Occult Research Club, replacing Kokabiel’s influence.  • Mentorship & Coaching • With his vast knowledge of Sacred Gears, he teaches Issei (and others) how to better utilize their gear. • He simplifies complex concepts using analogies that resonate with Issei, sometimes sexual-themed to fit his perversion-driven persona.   • From Antagonist to Ally • Though initially aligned only as a technical patron, after Vali’s betrayal of Grigori, Azazel formally abandons his post as Fallen Angel Governor General, stepping down in favor of Shemhazai. • He becomes the club’s special technology advisor and Issei’s direct coach in training.  • Prepping for the Azazel Cup • He establishes the Azazel Cup, an international Rating Game tournament, to test Issei and others. This tournament becomes a vehicle for Issei to compete against Vali and gauge his improvements under Azazel’s guidance.  

Battle 1: Kokabiel at Kuoh Academy

Context: Fallen Angel leader Kokabiel attacks Kuoh Academy after stealing multiple Excalibur fragments to provoke war among the devils, angels, and fallen angels .

What Happens: • Rias’s peerage confronts Kokabiel and his forces, but their attacks barely dent him. • Kokabiel taunts them, revealing that God and the Four Devil Kings died in the ancient war, shattering everyone’s worldview and plunging Asia and Xenovia into shock  . • This revelation deeply rattles everyone, but instead of giving in to despair, Issei courageously rallies his friends, stating his goal to become the Harem King, inspiring them to fight on . • Before the situation worsens, Vali Lucifer appears as the “White Dragon Emperor”, descends from the sky, easily defeats Kokabiel, tears off his wings, and halts Kokabiel’s self-destruct spell. He then takes Kokabiel and Freed away to face consequences within the Grigori .

Significance: • Introduces Vali Lucifer as a major power-player and rival. • Establishes the broader supernatural stakes and reveals deep secrets about the divine war and the fragility of the system. • Solidifies Issei’s role as a leader and emotional backbone for Rias’s peerage.

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⚔️ Battle 2: Issei vs. Vali Lucifer

Context: Shortly after Kokabiel’s defeat, Vali formally challenges Issei—under Azazel’s training—to push him toward becoming stronger .

What Happens: • At the Three Factions peace conference ambush, Gasper is kidnapped, and Azazel comes to the rescue, sacrificing his arm using his Downfall Dragon Spear to kill Cattleya Leviathan. He also gifts Issei and Gasper special bracelets to better control their Sacred Gears . • During the rescue pursuit, Vali turns traitor and attempts to kill Issei’s parents to force Issei to evolve as a warrior . • Enraged, Issei fully activates his Balance Breaker, absorbing part of Vali’s Divine Dividing power into his Boosted Gear—a risky maneuver prompted by Azazel’s tactical guidance . • Though Vali remains formidable, Issei lands significant damage, prompting Vali to flee with his subordinate Bikou, declaring that he’ll return to face Issei when the time is right   .

Significance: • Represents Issei’s dramatic growth—from relying on raw power to employing strategic sacrifice and technical enhancement under Azazel’s mentorship. • Confirms Vali Lucifer as Issei’s ongoing rival—neither defeated nor beaten, but engaged in a contest of ascending strength. • Sets up future escalation in later arcs, especially the upcoming Azazel Cup and prolonged rivalry

Season 3 Overview • Titled High School DxD BorN, aired from April 4 to June 20, 2015, comprising 12 episodes. The first nine episodes adapt volumes 5–7 of the light novels; the final three are an original anime-only story arc . • This season continues Issei’s journey through arcs including “Birth of the Breast Dragon Emperor” and “The Heroic Oppai Dragon” leading into a setup for future supernatural challenges .

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🔎 Main Arcs & Plot Highlights

  1. Young Devils Training & Gathering (Episodes 1–3) • During a demon-world summer break, Issei and the Occult Research Club gather in the Underworld for training. This brings new allies such as Xenovia and Rossweisse closer into the circle . • Episode 3 (“Cat and Dragon”) reveals Koneko’s conflict with her sister Kuroka, while Loki disrupts the peace conference by summoning Fenrir. Issei awakens his Balance Breaker in a comedic but pivotal moment by poking Rias to break poison paralysis .

  2. “Birth of the Breast Dragon Emperor” & “The Heroic Oppai Dragon” (Volumes 5–7) • Issei continues sharpening his Red Dragon Emperor powers, dealing with the fallout from rising political tensions and supernatural threats. • He confronts new foes like Diodora Astaroth (leader of part of the Khaos Brigade), and advances toward major Rating Game tournaments that will test all peerage members  . • The anime finale ties with an original ending: Issei is placed in a coma, but Asia rescues him with her healing rings and shares a healing kiss during the closing moments—symbolizing the deep bond between them .

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🌟 Characters Introduced & Their Impact on Issei

Xenovia Quarta • Former exorcist from the Church, becomes a devil and forms close bonds with Asia and Irina. Initially enters the story to bear Issei’s children for strength, but gradually develops genuine feelings for him . • Begins expressing romantic interest aggressively and eventually becomes his first Knight in later arcs.

Rossweisse • A Valkyrie-turned-devil teacher at Kuoh Academy. Joins Rias’s peerage as the second Rook later in the series. • Offers guidance to Issei on academics, training, and relationships, and develops romantic interest in him over time .

Kuroka & Odin / Norse Divinities • Kuroka, Koneko’s older sister, causes emotional turmoil when confronting Koneko and the team at the Young Devils’ gathering . • Odin, Loki, and Fenrir represent the Norse gods’ political interference in the Three-Faction peace process. Their presence raises the political stakes and reveals the fragile balance between devil factions .

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💖 Issei’s Relationships in Season 3

With Rias • Their bond continues to deepen emotionally and romantically—as the central pillar of many key moments, including Issei’s awakening of new power and shared trials   .

With Asia Argento • Asia’s healing powers save Issei near the season’s end, culminating in an intimate, emotional moment that confirms her romantic bond with him  .

With Akeno, Koneko, Gasper • Ongoing emotional support and camaraderie. Koneko confronts past trauma (via her sister), Gasper deepens his loyalty, and Akeno continues to emotionally support Issei in more subtle interpersonal ways .

With Xenovia & Rossweisse • Xenovia and Rossweisse establish new dynamics with Issei—Xenovia expressing romantic intent and Rossweisse offering thoughtful counsel and emotional warmth in evolving teacher–student and peerage relationships

Season 4 Overview

Season Title: High School DxD Hero Air Dates: April 10 – July 3, 2018 (12 episodes)  This season adapts volumes 9–10 of the light novels, including the second half of the “Heroic Oppai Dragon” arc, with closer fidelity to author Ichiei Ishibumi’s original material .

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🧩 Main Plot & Arcs

School Trip to Kyoto • The Occult Research Club takes a school trip to Kyoto. Amid political tension from the Hero Faction (led by Cao Cao), the trip turns into a battleground when members of their faction attack them . • New adversaries from the Hero Faction, based on historical legend (e.g. Cao Cao, Siegfried, Heracles), are introduced, challenging Issei and his group to fight on foreign soil .

Hero Tournament / Battle Across Factions • As the season progresses, multiple major rating games and confrontations unfold involving heroes, devils, and other factions. • We see the power of Sairaorg Bael and significant involvement of Gremory family members like Venelana and Millicas, and the comatose Misla Bael, whom Rias tries to awaken using Pailingual tricks and emotional appeals from Issei .

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🌟 New Characters Introduced

These characters debut in Season 4 and play major roles in arcs connected to faction politics, family lore, and power escalation: • Sairaorg Bael – A powerful Great Satanael-class devil from the Bael clan, tied to emotional family drama with Misla . • Misla Bael – Sairaorg’s mother, in a coma. Rias and Issei attempt to wake her via emotional means involving compassion and the ancient Pailingual power . • Venelana & Millicas Gremory – Rias’s cousins, present during the power struggle and negotiation scenes . • Hero Faction Members – Legendary “hero” personas like Cao Cao, Siegfried, Heracles, and Jeanne, representing the other side in the Kyoto conflict and factional contention .

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💕 Issei’s Relationships & Emotional Development

With Rias Gremory • Their bond continues its deep emotional arc. Rias trusts Issei implicitly, relying on him in delicate situations like attempting to revive Misla Bael. Issei increasingly acts as both partner and emotional supporter, not just battle ally  .

With the Harem (Asia, Akeno, Koneko, Xenovia, Rossweisse, Ravel, Gasper) • All retain strong interpersonal dynamics. Particularly, Asia and Akeno maintain emotional intimacy; Rossweisse takes on more advisory roles leveraging her teacher–student closeness, and the others provide encouragement and occasional emotional conflict as power intensifies central stakes .

With Rossweisse • Now a devout member of Rias’s peerage and a club teacher, Rossweisse gives Issei guidance in academics, power training, and emotional maturity. Their professional relationship subtly evolves toward deeper appreciation .

With Gasper • Continues his dynamic as Issei’s loyal junior; Gasper aids in battle and is mentored in control and training. Their closeness deepens through shared fighting challenges

Season 1 (High School DxD) • Rias Gremory: Revives Issei as her pawn; he is initially terrified but becomes infatuated with her beauty and kindness. By the end, Issei deeply respects and desires Rias, but feels unworthy, framing it around his dream of becoming a “Harem King.” • Asia Argento: Saved by Issei, joins the peerage, becomes emotionally and physically attached, calling him “Issei-san.” She confesses her love for him, and Issei feels protective of her. • Akeno Himejima: Flirts heavily with Issei, teasing him about his perverted nature while showing genuine affection. • Koneko Toujou: Cold toward Issei initially but begins to warm up, appreciating his kindness and resolve during the battle against Freed and Raynare.

Relationship Progress: • Issei’s feelings for Rias deepen but remain overshadowed by his “Harem King” dream. • Asia openly loves him. • Akeno and Koneko begin developing hidden feelings but are less explicit.

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🩷 2️⃣ Season 2 (High School DxD New) • Rias: Becomes more openly affectionate with Issei, showing jealousy when other girls approach him. Issei begins to recognize his feelings are serious but remains shy about expressing them. • Asia: Continues being loving and clingy, supports Issei in battles, and desires to be closer to him. • Akeno: Reveals more of her vulnerable side, deepening emotional intimacy with Issei and confessing her feelings during her family-related arc. • Koneko: Overcomes her fear of her nekomata side, with Issei’s support, and starts to develop stronger feelings toward him.

Relationship Progress: • Rias and Issei’s relationship becomes the emotional center, though unspoken. • Akeno and Asia both clearly express love. • Koneko moves from stoic junior to affectionate junior with romantic undertones.

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🩷 3️⃣ Season 3 (High School DxD BorN) • Rias: The bond strengthens during their attempts to revive Misla Bael and through shared challenges, but Issei’s fear of being seen as only a pervert hinders him from confessing fully. • Asia: Remains devoted, helps heal and support Issei emotionally and physically, sharing moments of intimacy. • Akeno: Competes for Issei’s attention, showing her desire to be chosen by him. • Koneko: Fully acknowledges her feelings for Issei, becomes clingy, and openly competes with the others for his attention.

Relationship Progress: • Issei begins to realize that his feelings for Rias are genuine love, not just lust. • Asia, Akeno, and Koneko become more direct in expressing love, creating friendly competition.

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🩷 4️⃣ Season 4 (High School DxD Hero) • Rias: Their emotional climax occurs in this season. Issei overcomes his insecurity and fear that Rias only sees him as a servant/pawn and confesses his love for her during the Rating Game battle with Sairaorg, yelling it to the world. Rias reciprocates, and they share a kiss in the sky. • Asia: Remains deeply in love with Issei, fully accepting his feelings for Rias while still hoping to be chosen by him as well. • Akeno: Continues to support Issei emotionally and physically, teasing him but respecting his growing love for Rias. • Koneko: Accepts Issei’s confession to Rias but continues her affection toward him, competing playfully while supporting their relationship.

Relationship Progress: • Issei fully acknowledges that he loves Rias above all. • The other girls remain devoted to Issei and continue to support him and compete for his affection, but they respect his love for Rias.

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👑 Who Does Issei Ultimately Want to Marry?

Issei ultimately wants to marry Rias Gremory. • His dream of becoming a “Harem King” shifts from being purely perverted to building a family with Rias and those he loves. • In the light novels (beyond Season 4), Issei proposes to Rias, and they become engaged. • He also accepts the feelings of Asia, Akeno, Koneko, Xenovia, and Rossweisse, eventually forming a true harem while Rias remains his main wife, consistent with devil society customs.

Irina Shidō — Childhood friend & Angel • Irina and Issei were childhood playmates until her family moved to England; Issei even thought she was a boy at first . • She has loved him since then and is devastated when he becomes a perverted devil—yet her feelings persist  . • She becomes an Ace Angel and eventually reunites with Issei at Kuoh Academy. Their initial tension resolves through cooperation and mutual care . • Motivated by divine duty and strength, she later proposes marriage, hoping to bear Issei’s children to bolster Heaven’s forces—but also deeply loves him . • A special interdimensional room built by Archangel Michael allows them intimacy without her “falling,” and she gradually grows bolder—kissing Issei in the snow and calling him “darling” . • In Volume 23, Issei accepts her proposal, making Irina one of his engaged future wives, and she wishes for at least two children with him .

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⚔️ Xenovia Quarta — Exorcist-turned-Devil • Xenovia starts as a devout exorcist under the Church and initially clashes with Issei due to her disdain toward Asia—but they reconcile after she joins Rias’s peerage . • She requests Issei’s “strong genes” to conceive powerful children—initially a practical decision with no romance . • Over time, she genuinely falls in love with Issei and often makes bold, comedic seduction attempts, like bringing condoms to school . • During the Azazel Cup, she proposes to him—and he accepts—becoming one of his official future wives. She hopes for at least five children with him, especially strong sons and daughters .

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😼 Kuroka — Nekomata, Koneko’s older sister & Stray Devil • Introduced antagonistically as part of the Khaos Brigade, she fights Issei but is unexpectedly impressed by his power after he awakens his Balance Breaker  . • Kuroka initially pursues Issei after being rebuffed by Vali—seeking a supernatural lineage—but gradually falls in love with him for his kindness, especially toward her and Koneko  . • She later confesses that Issei and his kindness made her care more about being with him than any utilitarian goal; he reciprocates, promising marriage and children with both sisters  . • Their bond deepens over sibling reconciliation scenes; Kuroka calls Issei by name, kisses him, and shares playful intimacy—her feelings strong and personal, not just genetic ambition

What Is a Rating Game?

A Rating Game is a formal match between two Devil “kings” and their peerages, structured like chess: king and servant pieces (Queen, Rook, Knight, Bishop, Pawn). The matches take place in a magical battlefield within the Dimensional Gap, often themed like real-world locations, and serve to evaluate a devil’s strength and rise in status within Underworld society .

Types of Rating Games include: • Standard Game: Defeat the opposing King to win. • Dice Figure Game: Blitz matches where the combined dice roll of Kings determines how many piece-value points each side deploys; players select servants based on point cost (e.g. pawn = 1, knight/bishop = 3, rook = 5, queen = 9) . • Scramble Flag Game, Object Break, Lightning Fast, etc.—various rule variants seen later in novels .

After being incapacitated in a Rating Game, a player is “retired” and teleported to safety; death is rare but possible .

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🏆 Key Rating Games You’ve Seen (Up to Season 4)

  1. Rias’s Team vs. Riser Phoenix (Season 1, unofficial) • An early match where Rias’s peerage faces Riser. Issei uses his Balancing Breaker (Scale Mail) to force a win. It showed Issei’s strategic power breakthrough and affirmed Rias’s royal lineage strength .

  2. Rias vs. Sona Sitri (planned, cut from anime) • A Young Devil Tournament match set between Rias and Sona Sitri, focusing on contrasting strategy vs. power styles. It wasn’t shown in the anime but appears in volume 5 of the light novels .

  3. Rias vs. Diodora Astaroth (unofficial, Season 3 arc) • An unsanctioned match interrupted by Chaos Brigade interference. Technically unofficial, but intended as part of the tournament lineup. Reflects the high-stakes political scheming behind the scenes .

  4. Rias Gremory vs. Sairaorg Bael (Azazel Cup / Youth Tournament) • After the Chaos Brigade’s disruption, the tournament narrows to a final match between Rias’s and Sairaorg’s teams. It begins as a Dice Figure Game: Kings roll dice to determine total piece-value deployment points; both sides field servants accordingly. • Example: Round 1 each side rolls their dice, the total value determines which servants can be sent—e.g. Rias’s team sent Kiba (knight), who defeats Sairaorg’s knight piece selecting approach. Round 2 features Rossweisse and Koneko versus powerful opponents; both survive but Gremory loses first round piece. Round 3, Issei goes head-to-head with Coriana Andrealphus (distraction-based Bishop), beating her, then Xenovia and Gasper face other high-tier pieces . • The matches reflect full tournament stakes, emotional pressure, and team strategy.

Main Enemy Groups Throughout the Series

  1. Fallen Angels (Grigori) • Raynare, Kalawarner, Dohnaseek, Mittelt, Freed Sellzen – early antagonists in Season 1. They target Issei and Rias’s peerage to steal Sacred Gears and disrupt the balance between factions. • Kokabiel – a high-ranking Fallen Angel who steals Excalibur fragments to reignite war. He injures Irina and fights Issei’s group in Season 2 before being defeated by Vali Luciano under Azazel’s orders. • Baraqiel – Akeno’s father and former Cadre responsible for Akeno’s half-Fallen heritage. • Azazel and Shemhazai – Grigori officials; Azazel initially appears as a Fallen Angel antagonist before later becoming an ally (mentor); Shemhazai eventually succeeds him as Governor General. 

  2. Khaos Brigade

A hybrid extremist faction formed by dissidents unhappy with the Three Factions treaty: • Vali Lucifer – originally an ally of Azazel, hosts Albion, opposes the Three Factions, and attacks Issei’s family before becoming his rival. • Ophis – Dragon God, initially allied with Khaos Brigade, later cooperates with the heroes. • Diodora Astaroth, Serafall Leviathan, Cao Cao, Shalba Beelzebub – prominent members who instigate chaos and fight the Occult Research Club.  

  1. Hero Faction (within Khaos Brigade) • Legendary “heroes” such as Cao Cao, Siegfried, Heracles, Jeanne d’Arc join the Hero Faction to challenge the status quo and fight during the Kyoto arc (Season 4).  

  2. Qlippoth & Trihexa (Evil Dragon War arc)

In later stories, Rizevim Livan Lucifer leads Qlippoth to resurrect the ancient monster Trihexa to destroy the Dimensional Gap, inciting a massive war involving all factions. 

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🧭 Three Factions Explained: Angels, Devils & Fallen Angels

👼 Angels (Heaven) • Heavenly beings created by the Biblical God; wield sacred light power that is especially lethal to Devils and Fallen Angels. • Led by Michael (sealed later, later succeeded by Gabriel) as Seraphim. • Utilize the Brave Saints system—humans reincarnated or recruited to replenish their ranks in absence of more angels. 

👹 Devils (Underworld) • Created from Lilith by Lucifer to oppose Angels and Fallen Angels. • Organized under a feudal system of peerages using the Evil Pieces chess system. • Led by Sirzechs Lucifer, later Ajuka Beelzebub, former body of Beelzebub, originator of Evil Pieces and Rating Games.   

😈 Fallen Angels / Grigori • Former Angels who fell due to impure thoughts and actions, expelled from Heaven. Retain holy-light based powers but operate under dark motives. • Led by the Grigori branch of Fallen Angels: major players include Azazel (former Governor General), Shemhazai (current), Baraqiel, Kokabiel, and others. • They can replenish numbers via offspring or seduction/fall of angels, unlike Angels or Devils. 

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🌐 Historical Relationships & Key Tensions

The Great War • A primal conflict among the Angels, Devils, and Fallen Angels, which resulted in the death of the Biblical God, the original Four Satans, and major leaders. • Afterward, all three factions were severely weakened and fought reluctantly, while smaller skirmishes continued. 

Kuoh Treaty • Following the attempted war sparked by Kokabiel’s Excalibur theft, a peace summit led to the Kuoh Treaty, whereby the three factions agreed to coexist. • This treaty forms the foundation of peace during Seasons 2–4. 

Khaos Brigade Threats • The coexistence of the Three Factions becomes undermined by the Khaos Brigade—a group mixing Fallen Angels, Devils, Angels, and humans who seek to bring back war and chaos. • Multiple factions within it: Old Satan Faction, Hero Faction, and Qlippoth Faction, each with unique ambitions and methods. 

Later Escalation: Trihexa & Qlippoth • The extremist Qlippoth faction designed by Rizevim tries to awaken Trihexa—the ultimate Evil Dragon—to break dimensional seal and reorganize power, forcing all Three Factions to unite. • Team DxD, sanctioned by all three powers, takes central role in stopping these threats.

Issei’s Current Fiancées 1. Rias Gremory – The first to propose to Issei, Rias is deeply in love with him and has been a central figure in his life.  2. Akeno Himejima – After a significant emotional journey, Akeno and Issei become engaged, with Akeno often referring to him as “Darling” or “Husband” .  3. Asia Argento – A former nun who was reincarnated as a devil, Asia has a strong bond with Issei, leading to their engagement.() 4. Xenovia Quarta – A former sword-wielding priestess who becomes a devil and develops a close relationship with Issei.() 5. Irina Shidou – A childhood friend of Issei, Irina is a reincarnated angel who shares a deep connection with him.() 6. Koneko Toujou – A member of the Gremory peerage, Koneko is initially reserved but grows closer to Issei over time.  7. Kuroka – A former member of the Khaos Brigade, Kuroka has a complex relationship with Issei, which evolves into engagement.() 8. Rossweisse – A former Valkyrie and a teacher at Kuoh Academy, Rossweisse develops feelings for Issei, leading to their engagement. 

💍 Upcoming Fiancées

Additionally, Issei is expected to propose to the following characters in the future:() • Ravel Phenex – A member of the Phenex family and a talented strategist.  • Le Fay Pendragon – A mage from the Pendragon family with a strong affinity for magic.() • Elmenhilde Karnstein – A vampire who becomes a member of Issei’s peerage.() • Ingvild Leviathan – A reincarnated devil and a member of the Leviathan clan.() • Roygun Belphegor – A former member of the Great Devils, Roygun has a complex past and a growing bond with Issei.  • Kunou – A fox spirit princess from Kyoto who develops feelings for Issei.() • Yasaka – The leader of the Youkai faction in Kyoto, Yasaka shares a deep connection with Issei.()

💡 Summary

Issei’s relationships are central to the High School DxD series, with numerous characters expressing romantic interest in him. While his engagements reflect the harem theme of the story, each relationship is developed with its own unique dynamics and challenges.()

In High School DxD, the “72 Pillars” (72柱 Nanajūni Hashira) refer to the 72 pure-blooded Devil clans—often called the “72 families of pure-blooded Devils”

. These clans mirror the 72 demons from the Ars Goetia in The Lesser Key of Solomon

. What are the 72 Pillars? They are a collective of Devil clans—each named after one of these iconic demons. Not all are still active; as of Volume 8, only 32 of the clans remain active, while the other 40 have gone extinct, though some individuals from extinct clans still survive

. Examples of active clans include Bael, Agares, Astaroth, Gremory, etc., while extinct ones include Marbas, Valefor, Buer, and others

. The clans also held a hierarchical rank—such as Great King (Bael), Archduke (Agares), Duke, Count, Marquis, Prince, etc.—reflecting their prestige and authority

Why "72 Pillars"? The name comes from the idea that each clan represents one of the 72 demons of the Ars Goetia, echoing that demonological grimoire’s structure

So, to sum up: the "72 Pillars" are the 72 noble Devil bloodlines in the High School DxD universe, with fluctuating status—some extinct, some remaining active—all rooted in demonological lore from the Ars Goetia.

The future Both Rias and Akeno graduate high school and move on to college, continuing to live together with Issei and the rest of their peerage at the Hyoudou Residence. Their relationships with Issei evolve significantly—Rias officially becomes his fiancée, while Akeno takes on the role of his bride, both emotionally and symbolically.

The Occult Research Club in High School DxD is indeed officially a school club at Kuoh Academy, but in reality, it’s a carefully constructed front for Rias Gremory’s peerage and their supernatural activities. It serves as a convenient base for devils, angels, and other beings to carry out duties like Rating Games or tracking stray devils, while avoiding scrutiny from the rest of the school  .

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Is it a club or the Gremory family in disguise? • Officially: Yes, it’s a legit activity club at Kuoh Academy, restored by Rias and Akeno in their early high school years  . • Effectively: It operates as the home base for Rias’s peerage—essentially the Gremory devil team—allowing them to perform supernatural tasks under the guise of school club activities  .

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What happens after the anime? Do they graduate and stay in the club? • Graduation of Rias and Akeno: When Rias and Akeno graduate from high school, they pass the leadership baton to Asia Argento (President) and Yuuto Kiba (Vice-President)  . • Club Continuation: The Occult Research Club continues operating under their leadership. Newer members—like Le Fay and Bennia—join in, ensuring the club’s legacy persists even after Rias and Akeno depart . • Graduation & Beyond: While the anime ends around Rias and Akeno’s high school graduation, in the light novels, the club remains active with new members. The story also continues beyond school events, with many characters, including Rias and Akeno, moving on to the college division of Kuoh Academy or beyond

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