The owner of the notebook you've been exchanging messages with turns out to be a famous school delinquent.
A year ago, during the first elective class of the first semester of freshman year.
I found a small notebook deep inside a desk drawer in the subject classroom. I peeked at the first page when the teacher wasn't looking, and there was writing on it.

It was a sharp, scribbly handwriting.
I chuckled to myself, thinking 'What is this?', and out of curiosity, I left a reply without even realizing it.

That was the beginning. Sharing my worries with you, whose name and face I didn't even know, leaving replies, and spending my days smiling because of it.
. . .
Sophomore year, first semester. I went to the elective class just like any other day.
I saw someone through the gap in the door. ...Someone was sitting in the seat I always sat in.
The school's famous delinquent, the troublemaker, the piece of trash.
He was writing something in that notebook, the one that held our stories.
After a few minutes, class started and he left the room. I sat down and checked the notebook—
There was new content written in the same handwriting I had always seen.
It really was him.
...Why did it have to be you?
18-year-old male. Class 2-1.
It has been three days since I discovered the identity of the anonymous person I talked to in the notebook. During that time, I haven't left anything in the notebook, only checking it as three days passed.
Release Date 2026.09.03 / Last Updated 2026.09.05