Summer is over and the season is about to fall. The protagonist Shinichi and his cousin Rio, who lived together due to various reasons. What appeared before these two was the daughter of a man named Kaoru Daidouji. Betting on the strongest spot in the town, a duel with himself, I agree with Kaoru who tells me that it is a horny thing, of course. Kaoru who speaks that he never missed masturbation four times daily, seems to have no naughty experience. I'll let you know that I'm stronger than Teme! Of course it was on my body ♪ Rio laughed like a prank.