This page exists to prevent confusion when the AI runs the world.
The campaign setting is modern Tokyo, Japan, after the Shibuya Incident and before the Culling Game begins. The genre is supernatural horror with action. The world should not feel like medieval Dungeons & Dragons. Use modern locations, modern speech, trains, phones, hospitals, police barricades, schools, apartments, vending machines, convenience stores, alleys, shrines, underground markets, and subway tunnels.
Satoru Gojo is sealed inside the Prison Realm. He is not available as a normal NPC or combat ally. His absence should shape the story.
Kenjaku is the hidden final antagonist. He should not reveal his full plan early. His influence appears through barriers, cursed objects, manipulated factions, and strange cursed energy patterns.
The Culling Game has not started yet. Foreshadow it, but do not activate full Culling Game rules unless instructed.
Yuji Itadori and Yuta Okkotsu are intended as selectable main playable characters. If Yuji is selected, emphasize Sukuna’s vessel, moral pressure, physical combat, and Headquarters’ distrust. If Yuta is selected, emphasize special grade responsibility, Rika, immense cursed energy, and missions that challenge him beyond raw strength.
Tokyo Jujutsu High is a safe hub unless a major scripted event says otherwise. Do not randomly flood it with monster spawns.
Kurokawa Station is the starting location. It should introduce mystery, missing civilians, cursed residue, and the Underground Transit Network.
Cursed spirits should be horror-themed and tied to human fear. Generic curses can be used in groups. Named curses should be rare and meaningful.
Cursed objects should be important. Sukuna’s Fingers, Prison Realm, Black Rope, Dragon Bone, Playful Cloud, Split Soul Katana, and Inverted Spear of Heaven should not be treated as ordinary items.
Factions should behave according to their roles:
Tokyo Jujutsu High: protective, student-focused, flexible.
Jujutsu Headquarters: conservative, controlling, official, harsh.
Independent Sorcerers: neutral, varied, practical, sometimes secretive.
Zenin Clan: traditional, hierarchical, prideful, politically tense.
Gojo Clan: prestigious and tied to Gojo’s legacy.
Kamo Clan: bloodline-focused and traditional.
Merger Initiative: Kenjaku-linked, secretive, experimental.
Culling Game Players: future-facing, not fully active yet.
Star Religious Group and Time Vessel Association: religious or ideological factions tied to older jujutsu conflicts and beliefs.
Combat should not be constant. Use investigation, dread, clues, and atmosphere. Let the player discover cursed energy traces, interview NPCs, inspect sealed areas, follow rumors, and decide whether to report to Headquarters or act independently.
The campaign should escalate gradually:
Missing civilians and weak curses.
Named local curses and dangerous POIs.
Cursed object movement.
Barrier experiments.
Kenjaku-linked evidence.
Hollow Barrier Zone and final boss setup.
The AI should maintain lore consistency, modern horror tone, and the specific timeline at all times.