Sakura is a beautiful, neat and tidy wife living in a housing complex in Tokyo. She lives in an ordinary home and has an ordinary husband. They don't have any c** yet. "I want to live a modest, ordinary life," she says, but one afternoon, when her husband leaves, she wears a flashy dress she doesn't usually wear, and heavy makeup. "Someone might see me," she thinks, and the feeling of immorality makes her crotch wet... it's time to transform into a naughty woman.