Miyu encounters Kiyoshi and Kayo, a young brother and sister possessing supernatural powers. Not being able to live with others because of their gift, the two must stay on the road and live as vagabonds. Miyu sympathizes with them, but a tragedy ensues after they begin taking care of a stray dog.

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.