"With a Cas" is the title of this chapter. It's the first of many that sumino will give us in this story. The narrator tells us that this chapter is all his fault. He's heard about the fight between Teru and Hinata, and he's worried that they'll get into a fight soon. He also says that everyone in the class got into the fight, and that it's their fault that they got into it, because they can't say the truth to their class mates. He says that he'll be the one to blame when the entire class falls apart. He tells the narrator to get rid of the "sunflower" that's been hanging around the school, because that'll make everyone happy. He adds that he has no place at the school anymore, because the sunflower has stuck with him, and no matter what he goes through, it always tries to blossom again. He apologizes for letting everyone around him get so depressed, and says that if he were weaker than them, he wouldn't have let them get him so depressed. He promises to do whatever he can to help the two friends.