RBD-586 School girls who fell into a trap Ruri Narumiya - Narumiya Ruri

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.