姪のビッチ化が許せない!

Hiroki Ashihara just wanted to spend college break doing his thing, but he was asked to tutor his brother's daughter Chisaki. The last time Hiroki saw Chisaki she was a little thing, but that was years ago. Still, he wasn't prepared for the shock of a dye-blonde suntanned gyaru. Chisaki was very obviously slutty. How could he help her with school when she only cares about sex? What the precocious bitch needs is... [From DLsite English]