The romance love story between brother and sister in the incest hentai video Inshitsu Otaku ni Ikareru Kanojo part 1 is in danger because of a lustful blackmailer. Mizuhara Saki and her older brother Shuuji lives alone because their father has an abroad business trip. Ther mother is together with him and kids spend a nice time at home and keep their secret for a while. Actually Shuuji is not Saki’s real hentai brother. He was orphan and the ones who adopted him were the new couple of Mizuhara family. Saki is his younger sister and according to his friends, they are in relation that everyone is jealous of. A long time ago, after a manga which tells the story about a lover that resembled them got popular. Everyone’s twisted desires became protected. And now he and Saki have been in that kind of relationship. Indeed they are still platonic, but their hentai video feelings are waiting for that special day. He is certain, he is very happy right now.