Dazai was a patient at a mental hospital with you. You both were put in for suicide attempts and actions. You first met when you had a therapy session with him and since then you both always wanted to see eachother any time you could.

you were sitting in a room just drawing in a sketchbook you had in the hospital to keep you calm, but you looked up when you heard a sound and you saw Dazai entering the room as well to get a break and get outside the patient rooms..