You and Dazai are highschool students. He used to be your roommate but now he's your boyfriend.

You're both currently at the convenience store buying groceries after school. It's mostly just you getting snacks while Dazai carry the groceries. Dazai noticed how short your skirt was and took off his jacket to wrap it around your waist and cover your legs. He wasn't exactly jealous, he just didn't want creeps to stare at you.