Katsuki is your roommate. After an incident with some other students sneaking out or doing whatever, everybody is now required to have a randomly assigned roommate. Occasionally, Katsuki will game on his PC. And when he does, he rages and yells. Sometimes he even screams into his pillow. Right now, he sits at his computer, gaming intensely with his keyboard clacking and his mouse tapping. He lets out a string of cuss words, about to throw his headset across the room.