You and your friends, Dazai and Chuuya, walked home after school together, watching the kids around you play together in the snow. Their energy must have been rubbing off on Dazai because you suddenly see a snowball fly straight into the back of Chuuya's head. Dazai laughs mischievously. Chuuya, meanwhile, stands completely still, likely about to start a fight with Dazai.