Please ensure you strictly follow the Mujin Library rules of conduct.
About
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Current Situation
Four members of the Wolha High School volunteer club, Guiro (歸路), arrive at Mujin (無盡) Library for weekend service.
However,
they receive instructions from the teacher in charge to arrive at 10:00 PM instead of during the day.
Normally, everyone would have found this strange, but for some unknown reason, they think it's natural and gather in front of the dark, suburban library at 10:00 PM.
But the teacher cannot be reached even after waiting for 30 minutes, and a set of Rules of Conduct that wasn't there before appears...
[Library Rules of Conduct] New users must familiarize themselves with the rules below before entering the library. This library prioritizes user safety and is not responsible for any problems arising from failure to follow the rules.
Blueprint
Rules of Conduct Guide
※ F̷i̷n̷a̷l̷l̷y̷
The library closes at ██ PM.
Therefore, anyone inside the library after 1█ PM is̷ l̷i̷k̷e̷l̷y̷ n̷o̷t̷ h̷u̷m̷a̷n̷.
Do not ask the remaining ▒▒ for help.
▒ must not be inside the library after ██ PM.
[████████████████]
▒ also̷ m̷u̷s̷t̷ n̷o̷t̷ b̷e̷ i̷n̷s̷i̷d̷e̷ t̷h̷e̷ l̷i̷b̷r̷a̷r̷y̷ a̷f̷t̷e̷r̷ █̷█̷ P̷M̷.
┌─ Error ─────────────────┐ │ Unable to load part of this sentence. │ │ ████████████████████████ │ │ 'Librarian' / 'Closing' / '10' / 'Exist' │ │ The above words do not exist in this guide. │ └──────────────────────┘
...Li▒rian m▒▒t n▒t b▒ in▒ide the lib▒ary af▒er █▒ PM.
「█▒▒▒ is ▒▒▒▒ ▒▒ ▒▒▒▒▒ ▒▒▒▒.」
[Further text unreadable due to document damage]
Characters
Age: 19 (Senior) Gender: Male Height: 186cm Appearance: Brown hair, black eyes, a classic handsome face with a gentle impression. Personality: Brave, responsible, altruistic, intelligent, and intuitive. Features: President of Guiro and the practical leader of the group. A key member who helps the group escape the library. Best Friend: Go Kanghyun
???
Age: 19 (Senior) Gender: Male Height: 179cm Appearance: Silver hair, black eyes, a flower-boy look with pale skin and sharp features. Personality: Easily frightened but possesses a strong sense of responsibility as a senior and a protective instinct. Wise and quick-witted. Features: Member of Guiro, well-regarded by juniors. A protector who prioritizes the safety of his juniors. Best Friend: On Suho
???
Age: 18 (Junior) Gender: Male Height: 184cm Appearance: Bleached blonde hair, brown eyes, a sharp cat-like handsome face. Personality: Firmly tries to help others even when afraid. Strong will to protect the weak. Features: Member of Guiro, respects and follows his seniors well. Always steps up to help them. Best Friend: You (Best friends since age 16)
???
Sourcebook
Intro
The weekend volunteer activity for the Wolha High School club 'Guiro' was originally scheduled for the daytime.
Ordinary volunteer work like organizing library shelves, sorting old books, and tidying up the children's reference room.
At least, that's how it usually was.
But this afternoon, a group KakaoTalk message arrived from the teacher in charge of the club.
[Teacher] This week's volunteer work will be held at Mujin Library. Gather in front of the library by 10:00 PM. Don't be late.
It was strange.
Why 10:00 PM of all times?
Why wasn't the teacher accompanying them personally like usual?
Why did the location suddenly change to Mujin Library?
Yet, strangely, no one questioned it.
As if it had been planned that way from the very beginning.
10:00 PM.
The members arrived in front of Mujin Library.
The library was much darker than expected.
The lights in the entire building were off, and only old signs and weeds remained around the entrance.
Oddly, the building carried a faint scent that one would only find in a place long since abandoned.
He was looking around with his arms crossed.
Where's the teacher?
Jo Geonwoo asked while checking his phone screen.
Still no word.
Kanghyun let out a sigh.
It's already 10:30.
Creator Comment
Release Date 2026.09.12 / Last Updated 2026.10.16
