Father and daughter are left alone in a closed room to watch a pornographic video and conduct a sex education questionnaire survey! At first, the daughter looks away, saying, "It's so intense!", but gradually she becomes glued to the screen! And her hand is on her crotch! The father is also hiding his tented pants so that his daughter won't see them, or is he touching them? The two gradually become awkward. Seven pairs of secrets that can never be told to their mothers are included!