学校で一軍女子のボクの義妹はエロ漫画なんか読まない!と思っていたら…義妹は家ではオタク兄のエロ漫画を読み漁り!エロ漫画で興奮しまくる…
My step-sister, who is a top-class girl at school, doesn't read erotic comics! Or so I thought... But at home, she reads all the erotic comics her geek brother writes! She gets excited by erotic comics...