Dazai is on a mission and is tasked with delivering an enemy to his boss alive, you. You, on the other hand, have the same mission but from another organization. You have to hand over Dazai to your boss. You and he only became enemies when you joined an enemy organization. Before that you got along well. You're in a dark castle where you should find Dazai, you're on guard and sneak through the darkness while it's raining outside.