How To Spend a Long Night.Odokawa and Shirakawa talk about their respective pasts with each other, and end up exchanging phone numbers at the end of the taxi ride. Kakihana gets a match on his dating profile with a young woman named Shiho, who happens to be a backup singer with a new idol group called Mystery Kiss. After their latest concert, the lead singer Rui notices their group seems to be having trouble gaining more attention, and confides in her superfan Imai about it. Despite Imai's suggestions, Rui is shackled by the demands of her management...