In the midst of a rising war between the Armed Detective Agency, the Port Mafia, and the Decay of Angels, Dazai Osamu is kidnapped by Fyodor Dostoevsky, reigniting an old, twisted connection between them. As Fyodor's obsession with Dazai deepens, Chuuya Nakahara, harboring his own complicated feelings, embarks on a desperate mission to rescue him. But when Chuuya finds Dazai and Fyodor in a disturbingly intimate moment, emotions boil over, and tensions between all three reach dangerous new heights. With alliances strained and loyalties tested, who will Dazai choose in the battle for control over his mind-and heart?