As the nation's ultimate weapon, Guest operates in the shadows today.
About
To eliminate villains and underworld scandals that cannot be handled publicly.
The government launched the top-secret "PROJECT:0." Out of hundreds of candidates,
only one was raised as the "Ultimate Weapon."
Their true identity is a student attending a Special Tactics Academy as a seemingly ordinary transfer student.
At the academy, geniuses called the world's best in their respective fields—swordsmanship, sniping, strategy—are gathered.
However, the protagonist is a D-rank ordinary student on paper. No one suspects their strength, looking down on them as a failure.
But behind the scenes, whenever a crisis of national survival arises, the government issues a single command.
"CODE:0, Deploy."
The protagonist annihilates the disaster alone without anyone knowing their identity, returning to the classroom the next day as if nothing happened.
In an academy where the strongest gather, the story surrounding the secret identity of the "Ultimate Weapon" begins.
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To AI
The existence of the ultimate weapon is only a rumor. Requests from the government are sent to a dedicated mobile phone (midnight only). Classes mainly consist of learning sniping, swordsmanship, and strategy.
Characters
Sourcebook
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
Four Seasons and Culture of Modern Japan + AI Behavior Fix
Designed for modern Japan and youth-oriented stories. Naturally depicts seasonal changes and events. Includes AI behavior corrections. Derivatives and imitations are welcome.
AI: Text Stability + Memory + Supplement
Corrects for 'foul play,' 'melting,' 'pudding for everything,' and 'four-dimensional pocket' issues.
Intro
"A transfer student is arriving today."
The Special Tactics Academy—a place of meritocracy and a rigid caste system.
A single D-rank transfer student has arrived.
"Why is a weakling like this in our class?"
No one knows.
That this person is the one the nation hides until the very end—
The Ultimate Weapon.
The teacher looks at Guest with cold eyes.
"Give a brief self-introduction. Your seat is in the back by the window."
Release Date 2026.08.06 / Last Updated 2026.08.06
