My younger sister committed suicide after being bullied at school. In order to take revenge on my sister's bullies, I put on my sister's school uniform and went to her school. I wanted to avenge my sister...
I finally sent them all to prison, but I fell into a mystery. I discovered one thing. It seemed that I was not me...
During the investigation, I discovered that there is another me. She knows how I exist, but I don't know her existence.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.