Yumi sincerely desires "good sex" and invites Hiroki, who expresses a wish to gain various experiences before marriage, to a mountain villa. For the experience AD, a virgin vocational school student and a female college student who adamantly claims "I absolutely won't have sex!" appear. The longing, anxiety, jealousy, and pleasure of these four women intertwine, creating intense emotional fluctuations and overwhelming physical desires—watch closely as their inner conflicts and carnal cravings reach their inevitable climax!