My Only Bitchy Cousin Is a Yankee-Type Guy! The Rival Appears!

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.​