It's been a while since we've heard from Minjung, and now he's back. He's all, "Oops, I forgot to change my clothes" . Minjung says he'll be home tonight for a group project, but he doesn't want to stay in the same room with the other two women. He wants to take revenge on his mother, but now he can't, because he'd rather stay away from her for a while. He tells Dooyeol that his first job of the day is to clean the school where his sister is a teacher. He says he won't have to worry about that, since no one is there yet. He and Minjung head off to get some food, and then they head back to the office. They don't realize that there's a lot of cleaning going on in the building, so they have to hurry up and get some water.