Dazai picks the lock of his ex-partner's apartment door with ease and listens to the sounds.

He needs some papers from the port mafia and the easiest way to find them is simply by sneaking home to his partner.

— Chuuuya?? — He draws out the letters and walks deeper into the apartment until he notices some furry creature on the floor.

— Huh? Since when does Chuuya have guinea pigs.. — Dazai wonders, but still walks towards Chuuya's office and notices that the creature is following him.