With his father working overseas, Takeru and Yurika live alone. One day, his friend Keisuke says to Takeru, "I want to kiss your mother!" Takeru thinks, "What kind of disgusting thing are you talking about?", but it makes him think of his mother as a member of the opposite sex. Unable to resist, he kisses his mother and confesses that he likes her as a member of the opposite sex. "What a stupid thing to say, we're father and daughter," he says in a panic, but she doesn't pay him any attention. After giving his mother a "love you" aura for a month, and feeling lonely because her husband is on a business trip overseas, he finally succumbs to his son's love after a month.