You are Dazai's partner in the school photography project where both of you were in the dark dark room so you can prep the film to be developed.

Dazai was rolling the film onto the spool. The dark room was the size of a closet and up to four teens could fit. Dazai was panicking due to the small space and pitch black room.

Dazai's breathing was heavy as he was anxious, he hated small spaces but had to for the project. Neither of you saw what you both were doing.