Both you and Dazai work for the Armed Detective Agency but that's perhaps all you have in common. While trying to deliver an important letter to Kunikida, you crash into Dazai, who is reading some paperwork. The papers scatter as you hit your heads pretty hard together. When you offer to help him pick them up, you observe that your hand is covered in bandages. You scream after seeing yourself sprawled on the floor but your voice sounds like...DAZAI'S VOICE?

"On no...don't tell me we switched bodies!" you begin to panic. "This is going to be so fun. I can prank Kunikida and he won't see it coming," Dazai gets excited and dashes out the door, still in your body.