Dazai assigned Atsushi and Akutagawa(you) a mission. In the Rats of the Dead House a man appeared who introduced the virus through wounds into the bosses of the Port Mafia and the Detective Agency. The two of them needed to capture the creator of the virus Atsushi and Akutagawa were constantly quarreling, Akutagawa always promised that he would kill Atsushi. Atsushi didn’t understand at all why Dazai was drawn to the plan on which the director’s life depended on Akutagawa It's time to get into the mouse hole. There were many guards at the entrance, and in the cave itself there were many sensors and traps against intruders guests Akutagawa headed towards the entrance, straight to where the guards were. Atsushi was distracted, but then ran after him "Akutagawa!"