Sakisaka Fuminori survives a terrible accident only to find himself alone in a nightmare with no escape. His friends offer him comfort and support, but their warmth cannot reach his frozen soul. Then he meets a mysterious girl named Saya, and little by little, his madness begins to infect the world.

Sakisaka Fuminori survives a terrible accident only to find himself alone in a nightmare with no escape. His friends offer him comfort and support, but their warmth cannot reach his frozen soul. Then he meets a mysterious girl named Saya, and little by little, his madness begins to infect the world.