童貞卒業は初めて出来た彼女相手にしたかったのに！童貞の兄が大好きな変態ブラコンの妹は、兄に初めて彼女が出来た事に嫉妬し、焦る！「お兄ちゃんの童貞は私のもの！」横宮七海
I wanted to lose my virginity to my first girlfriend! The perverted sister who loves her virgin brother is jealous and anxious that he has his first girlfriend! "My brother's virginity is mine!" Yokomiya Nanami
