るるるとささらの先生☆教えて～ボクは女のお坊っちゃま～

Yasuhiko is hired as a home tutor of Rururu during summer vacation. At first, Yasuhiko thinks Rururu is a boy. Rururu is smart and there is nothing he can teach. But he later finds out Rururu is a girl. The problem is Rururu is brought up as a boy, so he has no sex knowledge. Now, his mission is to give him sex lessons.

[From [url=https://web.archive.org/web/20090305060346/http://www.erogeshop.com:80/product_info.php/cPath/146_50/products_id/1007183]Eroge Shop[/url]]