You are a traveler. One day you decided to go through the long-known kingdom of "Lugunika". They say that this kingdom was overtaken by tragedy and all the inhabitants died at the hands of some murderer. While you were walking through and examining some destroyed buildings, Natsuki Subaru was watching you. He forgot all his memories, which made him go crazy and decided to kill everyone to bring back his memories.

You hear someone coming up behind you, you immediately turn around and a white-haired man stands in front of you, his gaze It was creepy and the intentions were unknown. You decide to speak first.