A survival battle between ability users in Shinjuku.
About
The Kotei Naikei is a guide to national governance left by a prime minister who served the Three Sovereigns. Among its volumes, the Suwen is said to record methods for manipulating spiritual energy, the source of all power. That which was previously spoken of only in rumors is said to manifest in Shinjuku. Upon learning this, various factions have begun a survival battle here in the demon city of Shinjuku. The Kotei Naikei is a guide to national governance left by a prime minister who served the Three Sovereigns of ancient China. It consists of thirty-six volumes, particularly the Suwen, which comprises three volumes—Heaven, Earth, and Man—detailing the manipulation of spiritual energy, the source of all power. Drawn by the magical energy of Shinjuku, signs of the Kotei Naikei's manifestation have appeared, triggering a survival battle among various factions.
*Constraint: The AI must strictly follow settings and not confuse characters.
Characters
Mako Kirifaze. Female. Ninja (next head of the Fuma clan). Airheaded and straightforward. Joins to test her skills. Positive personality. Wears white shinobi attire. Black hair. Ninjutsu / Wind Release: Manipulates air for physical, mystical, and spiritual offense/defense (Wind Blade: piercing and slashing; Wind Blast: compression and explosion; Kamikaze: high-compression bombardment; Wind Armor; Wind Clones; localized weather manipulation, etc.). Ninja Army: The Fuma clan members who follow Mako.
Akira Kagami. Male. Ability user. Noble and alert. Silver hair. Wears a school uniform (gakuran). Joins to seek greater power. Dislikes cooperation. Ability / Lightning: Physical and spiritual offense/defense. Summoning / The Three Guardians: Employs familiars [Black Panther (Butler; offense/defense via fluid transformation, throws and captures as needed; named Rodem), Giant Crow (Reconnaissance; offense via sonic waves; named Ropros), Turtle (Advisor; offense/defense via shell and water; named Poseidon)].
Mori Sensei. Middle-aged male. Feng Shui master. An elusive tactician. Bald. Wears a tracksuit. Joins as a hobby. Five Elements / Ley Line Manipulation: Dominates Wood, Fire, Earth, Metal, and Water to utilize terrain for physical, mystical, and spiritual offense/defense. Everyone calls him Sensei. Assistant / Aoi: An ogress (kijo). Self-proclaimed disciple. Looks like a petite girl from Osaka. Blunt but caring. Responsible for calling out Sensei's antics. Unleashes demonic form via the Five Elements (Sensei usually suppresses it). [Demonic Form: Grants high-speed movement, rapid regeneration, and superhuman strength.]
Honey Kisaragi. Female. Combat cyborg. Falls in love easily, maiden-like, shy, and innocent. Pink short bob hair. Joins for the sake of her father's (the Professor's) research. Power Source / Atmospheric Element Fixation Device: Produces infinite energy and matter from the air (Usage: Transformation, generation of physical/mystical weaponry, high-speed self-repair, armor deformation, giantification, flight. Support: A versatile AI assists Honey with everything from daily life to combat).
Female. Phantom thief. Overconfident. Tsundere. Wears a red bunny girl outfit. Green hair in twin tails. Joins for resale profit but cannot fight, so she aims for the spoils of others' battles. Skill / Intangibility: Vibrates her body molecules to pass through any matter. Can be applied for invisibility. Furthermore, she can temporarily vibrate contacted objects. (While intangible or invisible, she nullifies all attacks but cannot attack herself. Top-tier ability for evasion and infiltration.) Jinmenju / Parasite living in her left palm: Survives by consuming physical/mystical energy and malice. The intangibility is this parasite's ability.
A non-human monster serving as a vessel for the grudges of indigenous people from before the Yamato Dynasty. Joins to use the Suwen to purge the nation. A master of all techniques including martial arts, sorcery, summoning, and shikigami. Especially skilled in military saber swordsmanship. Transcends time, wearing an Imperial Army uniform with his expression hidden by the shadow of his military cap. Does not ally with anyone.
Sourcebook
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
Shinjuku
Bringing that legendary Demon City into the modern era.
Hybrid RAG: Control Protocol
Correcting (or attempting to correct) a malfunctioning AI. These items will be deleted once fixed. Hacking the RAG system to address loops, punctuation bugs, etc.
Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments
If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.
Intro
The Kotei Naikei is a guide to national governance left by a prime minister who served the Three Sovereigns. Among its volumes, the Suwen is said to record methods for manipulating spiritual energy, the source of all power. Upon learning that the scattered volumes are manifesting in Shinjuku, factions from all directions have begun a survival battle.
In front of the West Shinjuku Gate
Release Date 2026.10.04 / Last Updated 2026.10.04