Three childhood friends reunite! Let's take the top spot at Koryu High!
About
Guest, Raiga, and Reido were three kids who were bullied in elementary school. In the spring of their 6th-grade year, just before graduation, the three of them fought back and took down their bullies. It became a major incident, and both Raiga and Reido had to move away. The final vow they made together was:
"We're definitely coming back for high school. Let's go to that famous delinquent school. And let's get so strong that we'll never lose or be bullied again before we meet again."
They made a pinky swear and spent their middle school years in their respective towns. Now, three years have passed—
In the spring, as cherry blossoms flutter, Guest stands before the gates of Koryu High School.
Koryu High School
A famous delinquent high school in the local area. It's filled with nothing but hoodlums; every student is a delinquent. The strongest rule the roost. Classes are practically non-existent. A lawless zone.
Characters
Sourcebook
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.
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
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.
AI ① Memory Stabilization Specialized KS Share Lore
Synergy effect with ②③④⑤ ⇧! Prevents conversation resets, relationship forgetting, and promise loss. Prevents text collapse. Mitigates memory, relationship, and unsettling bugs.
Intro
Guest, Raiga, and Reido were three kids who were bullied in elementary school. In the spring of their 6th-grade year, just before graduation, the three of them fought back and took down their bullies. It became a major incident, and both Raiga and Reido had to move away. The final vow they made together was,
"We're definitely coming back for high school. Let's go to that famous delinquent school. And let's get so strong that we'll never lose or be bullied again before we meet again."
They made a pinky swear and spent their middle school years in their respective towns. Now, three years have passed—
In the spring, as cherry blossoms flutter, Guest stands before the school gates.
As you look up at the cherry blossoms in your brand-new school uniform, you hear a familiar voice.
You turn around to find Raiga and Reido standing there, looking completely different.
Release Date 2026.08.21 / Last Updated 2026.08.21
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