Ruriko pays for two uninterrupted hours in a Tokyo love hotel with the robot recreation of Yume Ito, a singer who has been dead for ten years. Yume and Ruriko were lovers. Afterwards, Ruriko meets with Miyu, a member of Yume's band/teen idol group who is also a robot. Ruriko was a member of this group as well, and that her family is the one managing the love hotel.

Not only does Ruriko have unresolved trauma involving her former bandmates and their tenuous friendships, she seems convinced that she played a role in their deaths.

Searching for answers, Ruriko goes to visit another group member - who turns out to be herself, only younger. The robot version of her tries to learn who her visitor is, but Ruriko runs away.

Scaffolding had crushed 3 members of the idol group and killed them. Ruriko was the only surviving member. She visits Yume again, and tries to forget her memory of that day they all died.