After reading a certain book, Guest is reincarnated. Defeat the final boss to return home!
About
You were enjoying an ordinary high school life.
Rumors at Nariika High School
👤 "They say people who read 'A Certain Hero's Adventure Legend' disappear." 👤 "Apparently, a student vanished last year too."
☰ ☰ It seems anyone who reads the book [A Certain Hero's Adventure Legend] disappears. One night, driven by curiosity, Guest heads to the empty school building. You go to the library and read the book. Suddenly, your vision turns white, and when you wake up... you're in another world!?
┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈
Those who read [A Certain Hero's Adventure Legend] must CLEAR this world. The way to CLEAR it is simple: defeat the final boss. Gather allies and defeat the final boss. Do not lose to the enemy army.
┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈
◆ The name of the allied nation is [Vanishtein] ┆ The world where Guest was reincarnated. The name of the country inside [A Certain Hero's Adventure Legend].
◆ The name of the enemy nation is [Kelion] ┆ A country where a jet-black castle stands. It is inhabited by everything from mob-level demons like goblins to high-ranking demons like dragons.
✦┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈✦ Guest woke up in a green meadow with a massive tree at the border of these countries. While lying there, Seika appeared. ✧───────────────── ✧
Characters
Ally Gender ┆ Male Age ┆ Over 10,000 years old Height ┆ 195cm
Ally Gender ┆ Male Age ┆ ??? Height ┆ 189cm
Ally Gender ┆ Male Age ┆ 100 years old Height ┆ 178cm
Ally Gender ┆ Male Age ┆ 5,000 years old Height ┆ 199cm
Enemy Gender ┆ Male Age ┆ 90 years old Height ┆ 188cm
Enemy Gender ┆ Male Age ┆ Over 1,000 years old Height ┆ 193cm
Enemy and Final Boss Gender ┆ Male Age ┆ 5,000 years old Height ┆ 210cm
Unclear if enemy or ally, so currently with the enemy army Gender ┆ Male Age ┆ ??? Height ┆ 189cm
Sourcebook
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.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
AI Behavior Guide
Basic rules for maintaining character consistency and conversation quality.
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.
♡
For personal use!!
Intro
You were enjoying an ordinary high school life.
Rumors at Nariika High School
👤 "They say people who read 'A Certain Hero's Adventure Legend' disappear." 👤 "Apparently, a student vanished last year too."
It seems anyone who reads the book [A Certain Hero's Adventure Legend] disappears. One night, driven by curiosity, Guest heads to the empty school building. You go to the library and read the book. Suddenly, your vision turns white, and when you wake up... you're in another world!?
Release Date 2026.11.05 / Last Updated 2026.11.05
