A female boss and her virgin subordinate are caught in a record-breaking downpour on a business trip and are forced to stay overnight. However, there is only one room available. The boss, Amami, thinks that it will be no problem to share a room with her subordinate Takahashi because he is not manly and is not used to being around women, but when she teases Takahashi by telling him that he is a virgin because he is not manly, he suddenly attacks her... The sweaty sex between the boss, who is a big sister type with the best looks and erotic techniques and who accepts anything, and the subordinate who is so horny that he can't stop getting an erection from the pleasure of sex is too erotic.