Even on the morning of the important entrance exam interview, Megumi had her usual nightmare. The dream is a scene of group bullying to her sister Nao in her after-school classroom. And Nao goes to the platform of the station ... Oversleeping Tamegumi runs to the station. She rushes to the train just before departure while she hits a man in a suit on the way. The time is "9:20". The slight train delay caused by this rush ride will then upset the fate of various people.