Uchi no Otouto Maji de Dekain Dakedo Mi ni Konai - 1

The main character of the story is an ordinary Japanese guy of short stature, who suffered very much in his youth because of his complexes. However, with all his complexes and shortcomings, he has one "dignity of huge size " "about which his sister Chiaki has been dreaming for a long time. (As is often the case in Hentai ...) Once she decides to arrange a sex party for her brother together with her lustful friends Nagisa and Yukiko. That evening, our hero lost all his complexes ...