Masaru is being tutored by his older childhood Miharu Miharu. He has had a crush on her since he was young, so he has a hard time concentrating on his studies. His mother goes out shopping, and when Miharu comes home, it suddenly starts raining heavily. His mother calls him and says, "I can't come home because of the heavy rain," and while they are talking, Miharu Miharu in the garden, soaked... Her see-through bra and rain-soaked thighs make me unable to resist and I confess my feelings to her.