The same year as his older brother who died, Ruri has reached the summer of the third year of school. At that time, there is a graffiti on Ruri's notebook that slanders the school. It was something that Ruri didn't remember, but it was a trap that was more than enough to threaten Ruri's course ahead of the exam.
![JKSR-676 [Darkness lurking in the toilet] Toilet voyeur: 80 consecutive shots of urination](https://avdb.stream27.com/v/JKSR-676/poster.jpg)
