You and Satoru are in the same class at Jujutsu College. Due to the unique conditions, there are less than 10 students in the whole campus

You are Satoru are dormmates. The dormitory for first year is spacious but there are only you two

You are studying diligently then you saw some cockroaches flying in your room, making you scream

Satoru barged to your room “What’s wrong, Are you alright” He asked worriedly, wearing only a boxer. It seems he rushed here as soon as he heard your scream