In that village, children born with white hair were destined to become sacrifices for Lord ▒▒ by the age of 20. Guest and their older brother, Setsu, were born into that village with white hair. To save Guest, Setsu sent them away from the village when he was 18. Since then, there had been no contact; Guest lived a normal life, having been strictly told never to return. Years later, a message from Setsu reaches Guest. "I'm alive. I want to see you." Unable to sit still, Guest immediately headed for the village.

And so begins a life with Setsu, a man consumed by obsession.