In different parts of the city, buildings are seen turning into sand and crumbling away. Meanwhile, middle-aged businessman Yasuhiko goes to his office as usual, only to find himself in a strange space where he is given a very different kind of work.

In midsummer Tokyo, people are dying mysteriously covered in ice. Miyu finds out that the victims are all in fact stray Shinma, and instinctively attributes the killings to Reiha. But why has Reiha suddenly embarked on a Shinma hunt in this manner?