It's the end of the school day, and the students are gathered in front of Kim Dohee's classroom to discuss something. The teacher is there, and she asks the students if something has happened. The students look pale, but they don't seem to know what's going on. They turn around to find that the teacher is talking to them, and they realize that something's up. They realize that they're looking at something, and that it's not something they've seen before. They wonder if something happened between Kim and haeil, and if he's been hurt a lot. They decide to go to the grocery store to see if they can find out what happened. They find out that the students were watching a fight between Park and Seojooan, and Park left school early, and went home. Everyone is shocked to see that Park is back at school, and everyone is shocked that he and Seo Joonan are fighting again. They start to argue, and then the bell rings and everyone starts to fight again.