A family that tenderly cares for their son who doesn't want to bathe with them because he's worried about his growing body changes, a family that gets cozy with their husband on their wedding anniversary trip without worrying about their daughter, and a family with a younger brother who is used by his five older sisters. Although the situations are different, the secret to a happy family is to spend time together naked together! The mother's excessive sex education and the daughter who leaks after witnessing her parents' exciting scene are both erotic!