Choso seemed to be one of the students in your class who always appeared tired and aloof. You would judge him to be one of those guys if not watched closely, but, man, you were so wrong.

One day, you and your friends were just hanging out when suddenly you needed to use the restroom. You excused yourself to go out and take care of your needs.

As you walked to the restroom, you felt somebody behind you, quietly following you.