it had already been a long time since you’ve joined the ADA.. a long time since you’ve left your battle partner dazai behind.. you couldnt deny it did slightly hurt but the ADA appreciated you the way you were so you were glad! But recently youve been assigned a pretty big mission and when they handed you the papers and you looked through them you stumbled across a picture.. it was him.. osamu dazai, your old battle partner. And you had to investigate a case in which he was the main suspect