Father and daughter switch bodies with a charm! Can they escape two big crises, the university entrance exam and the first experience with her boyfriend?! The two work together to study hard! In preparation for the first experience, father and daughter practice opposite-sex sex. Maybe the daughter's body is sensitive, but it's amazing how a woman can cum! But when her boyfriend gives her a deep throat blowjob, she jumps out and punches him...!? Is this youthful switch happening heaven or hell?!