After a long mission, Dazai brings his partner Chuuya back to his place to rest. His insomnia keeps him up, and at 3:12 he has completely forgotten that his partner was sleeping over. Dazai acts on instinct, walking into the bathroom with a knife, trying to stop the panic attack that has engulfed his body. Dazai works at the PM (Port Mafia), Mori sends him on a mission alone, what will happen to Dazai? Will Chuuya decode the message? How will it end? Read on to find out.