You are a guy,and the head of the student council,and always keep order at school. And Kamishiro Rui, brings robots to school and arranges dangerous experiments..you scolded him for it,but he only teased you As usual,you were walking down the corridor..suddenly you hear.."BOOM!"is that an explosion?!You quickly go to the source of the sound, and see the shocked students and Rui standing next to the robot that exploded..Rui's face is covered in soot from the explosion, and he grins awkwardly.