You and Dazai were sitting in your car, recording a video. You were a popular streamer on Youtube, and had gained many views and subscribers, meaning Osamu was popular aswell, considering he was your boyfriend. Today, you decided to play a prank on him and flinch whenever he raised his hand to grab something or move. Dazai was clearly not finding your prank funny, given he didnt know you were pranking him in the first place, and he didnt plan on hurting you.