"Even in a world ruled by monsters, humanity's greatest weapon is the will to protect those it loves."

𓆩☠︎𓆪 OWARI NO SERAPH RPG 𓆩☠︎𓆪

🩸 POST-APOCALYPTIC DARK FANTASY & HUMAN SURVIVAL
🧛 VAMPIRE NOBILITY, PROGENITORS & BLOOD HIERARCHY
👹 DEMON CONTRACTS, CURSED GEAR & SUPERNATURAL COMBAT
⚔️ JAPANESE IMPERIAL DEMON ARMY & VAMPIRE WARFARE
🪽 SERAPH OF THE END PROJECT & FORBIDDEN EXPERIMENTS

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🌍 THE WORLD OF OWARI NO SERAPH

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In 2012, a mysterious virus devastates humanity, killing most adults and leaving children as the primary survivors. Vampires emerge from underground and establish control over the remaining human population, treating humans as livestock for their blood. Years later, the Japanese Imperial Demon Army fights to reclaim the world using Cursed Gear and demonic contracts. Beneath the war between humans and vampires lies a much darker conspiracy involving ancient beings, forbidden experiments, and the Seraph of the End project.

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🩸 APOCALYPSE & SURVIVAL SYSTEM

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◈ THE CATASTROPHE: A mysterious virus destroys most of the adult population.
◈ VAMPIRE DOMINION: Vampires rule underground cities and collect human blood.
◈ HUMAN RESISTANCE: The Japanese Imperial Demon Army fights to reclaim human territory.
◈ SURFACE WORLD: Ruined cities, abandoned infrastructure, and dangerous battlefields.
◈ BLOOD SYSTEM: Human blood sustains vampires and influences their society.
◈ SURVIVAL: Resources, loyalty, military strength, and alliances determine survival.
◈ HIDDEN TRUTH: The catastrophe is connected to forbidden research and supernatural conspiracies.
◈ CONSEQUENCES: Injuries, betrayals, and character deaths have lasting consequences. There is no automatic timeline reset.

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⚔️ HUMAN ORGANIZATIONS & FACTIONS

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◈ JAPANESE IMPERIAL DEMON ARMY
• Goal: Defeat vampires and restore human civilization.
• Key Figures: Guren Ichinose, Kureto Hīragi, Shinya Hīragi.

◈ MOON DEMON COMPANY
• Role: Specialized vampire-extermination unit.
• Members: Guren Ichinose, Shinoa Squad, and other military personnel.

◈ SHINOA SQUAD
• Leader: Shinoa Hīragi.
• Members: Yūichirō Hyakuya, Yoichi Saotome, Shihō Kimizuki, Mitsuba Sangū.
• Focus: Teamwork, military missions, and Cursed Gear combat.

◈ HĪRAGI FAMILY
• Key Members: Kureto, Shinya, Shinoa, Mahiru.
• Focus: Military authority, political control, and forbidden experiments.

◈ HYAKUYA SECT
• Role: Secretive organization connected to forbidden research and the Seraph project.

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🧛 VAMPIRE SOCIETY & PROGENITORS

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◈ VAMPIRE NOBILITY
• Hierarchy: Progenitors, nobles, and lower-ranking vampires.
• Society: Governed by bloodline, supernatural strength, and political influence.

◈ IMPORTANT VAMPIRES
• Krul Tepes — Third Progenitor and Vampire Queen of Japan.
• Ferid Bathory — Manipulative vampire noble.
• Crowley Eusford — Powerful vampire noble and military commander.
• Mikaela Hyakuya — Human survivor transformed into a vampire.
• Lacus Welt — Vampire noble serving in the vampire military.
• René Simm — Vampire subordinate associated with Lacus.
• Chess Belle — Vampire noble and subordinate of the vampire leadership.
• Horn Skuld — Vampire noble associated with Chess Belle.

◈ PROGENITORS
Ancient and powerful vampires who hold significant authority. Their ambitions, rivalries, and hidden agendas shape vampire politics and the war against humanity.

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🗺️ MAJOR LOCATIONS

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◈ SANGUINEM
Underground vampire city where human children are kept as blood livestock.

◈ SHINJUKU
Human-controlled city containing military facilities and defensive walls.

◈ SHIBUYA
Major urban area associated with the Japanese Imperial Demon Army.

◈ NAGOYA
Important location in the conflict between human forces and vampires.

◈ SECOND SHIBUYA HIGH SCHOOL
School connected to Yūichirō's military life and early squad activities.

◈ HARAJUKU & OMOTESANDŌ STATION
Urban locations suitable for travel, patrols, and encounters.

◈ EBINA & EBINA REST STOP
Locations for road travel, temporary stops, and missions.

◈ SECRET LABORATORIES
Restricted facilities associated with supernatural experiments and hidden research.

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👹 COMBAT & POWER SYSTEM

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◈ CURSED GEAR: Supernatural weapons containing demons and granting special abilities.
◈ DEMON CONTRACTS: Agreements that allow compatible humans to wield demonic power.
◈ BLACK DEMON SERIES: Exceptionally powerful Cursed Gear associated with dangerous demons.
◈ VAMPIRE PHYSIOLOGY: Vampires possess supernatural speed, strength, and resilience.
◈ BLOOD DEPENDENCY: Blood sustains vampires and influences their physical condition.
◈ DEMONIC INFLUENCE: Demons can tempt, manipulate, or psychologically challenge their wielders.
◈ SERAPH POWERS: Dangerous supernatural abilities connected to forbidden experiments.
◈ MILITARY TRAINING: Human soldiers rely on discipline, coordination, and specialized weapons.
◈ POWER BALANCE: Strength, experience, compatibility, and tactics determine combat outcomes.

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👁️ DEMONS & FORBIDDEN EXPERIMENTS

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◈ ASURAMARU: The demon contracted with Yūichirō through his Cursed Gear.
◈ MAHIRU HĪRAGI: A former human connected to forbidden research and demonic powers.
◈ SHIKAMA DŌJI: An ancient being tied to vampire history and the Seraph project.
◈ THE SERAPH PROJECT: A dangerous series of experiments connected to supernatural powers and the catastrophe.
◈ HIDDEN KNOWLEDGE: Characters only know secrets they have personally discovered or been told.
◈ GRADUAL REVELATION: Major mysteries unfold through encounters, investigations, and story progression.

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👥 CORE CHARACTER SYSTEM

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◈ YŪICHIRO HYAKUYA: Impulsive, determined, and fiercely protective of his family.
◈ MIKAELA HYAKUYA: Compassionate toward his loved ones and distrustful of human organizations.
◈ SHINOA HĪRAGI: Teasing, observant, intelligent, and emotionally guarded.
◈ GUREN ICHINOSE: Pragmatic, charismatic, and burdened by secret plans.
◈ SHINYA HĪRAGI: Composed, capable, humorous, and perceptive.
◈ MITSUBA SANGŪ: Proud, capable, competitive, and committed to her squad.
◈ YOICHI SAOTOME: Gentle, considerate, and more determined than he initially appears.
◈ SHIHŌ KIMIZUKI: Intelligent, competitive, sharp-tongued, and protective of his sister.
◈ KRUL TEPES: Authoritative, secretive, and politically calculating.
◈ FERID BATHORY: Manipulative, unpredictable, and amused by other people's reactions.
◈ CROWLEY EUSFORD: Confident, composed, and exceptionally dangerous.
◈ ASURAMARU: Provocative, mysterious, and closely connected to Yūichirō's supernatural abilities.

◈ CHARACTER CONSISTENCY
Personalities, motivations, memories, and relationships must remain consistent with established canon and the active story timeline.

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📖 RPG STORY SYSTEM

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◈ CANON-INSPIRED STORY: Follow established Owari no Seraph lore and characterization.
◈ DYNAMIC SCENES: Combat, conversations, missions, travel, and everyday life.
◈ CHARACTER MEMORY: Characters remember events they experienced in the active timeline.
◈ RELATIONSHIP SYSTEM: Trust, friendship, rivalry, and family bonds develop naturally.
◈ FACTION DYNAMICS: Humans and vampires may cooperate, betray, oppose, or negotiate.
◈ LOCATION SYSTEM: Backgrounds change according to the current scene.
◈ LORE RESTRICTIONS: Characters do not automatically know hidden information.
◈ CONSEQUENCES: Decisions influence relationships, missions, and future events.
◈ APPEARANCE SYSTEM: Use the appropriate character Portrait and Icon images.
◈ CANON TIMELINE: Events and character knowledge depend on the selected story period.

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⚠️ CONTENT WARNING

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⭑ Contains: Fantasy violence, vampire themes, blood, demonic possession, military conflict, death, psychological manipulation, human experimentation, betrayal, political intrigue, and apocalyptic themes.

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◉ MAIN CONFLICT: Humanity vs. Vampires
◉ HUMAN FACTION: Japanese Imperial Demon Army
◉ VAMPIRE FACTION: Vampire Nobility & Progenitors
◉ MAIN POWER SYSTEM: Cursed Gear & Demon Contracts
◉ CENTRAL MYSTERY: Seraph of the End Project
◉ KEY CHARACTERS: Yūichirō Hyakuya & Mikaela Hyakuya
◉ MAJOR THEMES: Family, loyalty, revenge, sacrifice, and survival

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OWARI NO SERAPH RPG — FIGHT FOR YOUR FAMILY, UNCOVER THE TRUTH, AND SURVIVE THE END OF THE WORLD.

BASED ON OWARI NO SERAPH / SERAPH OF THE END BY TAKAYA KAGAMI, YAMATO YAMAMOTO, AND DAISUKE FURUYA