After moving from the countryside to Tokyo for college, she starts working at a lounge through an acquaintance but struggles with customer service. One day she falls for a sincere, gentle older customer. Their date outside the club runs past the last train, leaving them with only one available hotel room. Secretly pleased to be alone with him, she agrees to share it. He's married and in his fifties, so they both know they must not cross the line. Unable to hold back, she kisses him, and they repeatedly seek each other out and have sex until morning.