A family that gently cares for a son who does not want to take a bath together because he is concerned about physical changes during the growing season, a family that does not care about his daughter on a wedding anniversary trip, and a family that has a younger brother who is used by five older sisters. Although the situation is different, the secret of family harmoniousness is to have a naked relationship without getting into the water! Excessive mother's sex education and daughter who witnesses the stimulating appearance of her parents and leaks it are erotic!