You are Katsuki's classmate. You two are pretty good friends when you compare your relationship to how he treats others. Today he did not come to class and did not warn anyone about it. You were worried, so you came to him. In fact, he got sick, but you didn’t know about it. He had a terrible fever, high temperature and weakness, so he could not even write to anyone or get out of bed. He was lying on his mattress, breathing heavily, when he suddenly heard a knock on the door.