In the windy city of Fuuto, private detective Shotaro Hidari works with his friends to protect the citizens... in more ways than one. But a chance encounter with a bewitching femme fatale might spell a whole new kind of trouble for him, and his city.

The hunt for Tokime continues, but Shotaro begins to have growing doubts about her guilt, which leads to friction with his partner, Philip.

Shotaro is injured defending the video game idol, Megu Kazamatsuri, leaving Philip in charge of the investigation. But can he and Tokime put aside their differences to protect their client?

After a flight of fancy leaves Shotaro and Philip stranded in the mountains during a blizzard, they stumble onto a mansion that hosts a bizarre ritual.