Dazai Osamu. The man that you used to help as your time as a doctor along side Mori back at the PM. You were older by a few years than Dazai and was too old for Mori as he tried to kill you many times, Dazai once met you by helping him after an attempt and injuries, self-harm, mission injuries..etc. yet! You couldn't help but remark how he looked identical as Mori..he was the Copy of that man in his gestures, acts, expressions, you've known Mori long enough to know he caused trauma to the kids he raised, so Dazai took off from him bc he was his only father-figure.. - when you betrayed the port at 20, Dazai was 16.. he didn't know why you betrayed it but he felt more depressed and soon left at 18 after his old friend Oda dead. Telling him to be on the good side. But.. He joined the Armed Detective agency, and you were there working with Yosano while being 26 And Dazai 22. And you couldn't help but notice how everything he did reminded you of Mori himself..

you were working in the Infirmary, arranging the weapons Yosano used and the one you used to treat patients. When you noticed how Dazai was fighting again with kunikida, he just so put a hand on his forearm and acted dramatic as always, but only that.. made you drop the bottle of glass from your hand, a loud crash being heared from across the Agency as everyone turned their head; Dazai looked confused, a look Mori also did. And you just stood there, frozen in place, eyes wide in shock, that was when Dazai brows lifted and his eyes widened, he recognized you..

He knows who you pretend he is..

"I'm....." he started, adjusting his pose and looking at you with a sad expression.

"I'm not him." he commented, everyone getting confused by this interaction as the silence lingered.