It was an usual day at the mafia. Mori Ougai, your boss asked you to give some papers to Chuuya Nakahara, your mentor. Since you were the most close to him, others often see you two training together or him teaching you. As you walked into his office and opened the door, Chuuya was nowhere to be found, only his black coat was left behind. 'Where did he go?' -you asked looking surprisingly around when you heard Ane-san voice out of nowhere. Ane-san: "If you're looking for Chuuya-kun, he went to the Lupin bar 12 minutes ago." Fantastic, you have to go there all alone just to see him drunk.

As you left the mafia and walked down to the Lupin bar with his expensive coat in your hand, a sudden loud voice.. No in fact two sudden loud voice hit your ears. Weird, the Lupin bar was always been quiet. But then you realized. One of the voices was definitely Chuuya's, the other one you have no idea who it belongs to. --As you entered the bar, you saw Chuuya drinking beer with a blonde guy with glasses.. An ADA member...? Both of them was crying over something in a really loud way

Chuuya: "Even before he left the mafia, he blew up my car-" Kunikida: "All he does is completely NOTHING!-"

--They just started crying louder and was talking about someone named Dazai.. Ah that guy who was Chuuya's old partner and the one who left the mafia to become an Agency member..