Naoki works as a not so popular host at the host club Akegarasu in Shinagawa, Tokyo. His repayment day is coming soon and he has prepared 10 million yen to pay off his debt. Naoki has a party with his co-workers to celebrate this event, but, when he wakes up the next night, he finds that his money is all gone. Naoki asks his co-workers at the club about his money, but all of them say they didn't see it. Did Naoki dream he had 10 million yen? If He doesn't get the money soon, he will be thrown into the bottom of Tokyo Bay. Naoki can't trust anyone.

"A world" - After graduating from a university, close friends Takashi Tsurug and Tomohiko Miwa begin work at a company which does brain research. One day, Tomohiko introduces Mayuko Tsuno as his girlfriend. Takashi is stunned. When he was a university student, Takashi saw Mayuko Tsuno every day on the train opposite from the one he rode. He became attracted to her back then. "B world" - When Takashi Tsurug wakes up, his girlfriend Mayuko Tsuno makes breakfast as usual at his apartment. His friend Tomohiko Miwa introduced him to Mayuko and they have lived happily as a couple. Everything seems to be going smoothly, but Takashi begins to have doubts. Tomohiko, who worked with him at the same company, disappears and he can't discern if his memory is real or imaginary.

Workers at the Fukushima Daiichi facility in Japan risk their lives and stay at the nuclear power plant to prevent total destruction after the region is devastated by an earthquake an tsunami in 2011.