시이바의 또다른 얼굴Shiiba-san no Ura no Kao. with Imouto Lip椎葉さんのウラの顔. with イモートリップ
Based on the erotic manga by Yuzuki N.
Hes always been the quiet kid at school. Never trying to make a fuss, hes barely noticed at all. So why is the prettiest girl in school throwing herself at him…what could the reason be?