When Kuuya's parents died, he was adopted by the Hiiragi family. In a household of six elder sisters, he was the only guy. In time, he fell in love with his sister Kaname, but their father noticed and ...

They welcomed me home, but late at night, Kaname Onee-sama raped me, and treated me like a toy. I felt very ashamed and I made up my mind to train my sex technique to put her to shame...with the help ...