Description: Young guy Kuuya’s parents died, he was adopted by the Hiiragi family. In a household of six elder sisters, he was the only guy. In time, he fell in love with his sister Kaname, but their father noticed and was worried about what it could become so he sent Kuuya to his distant relatives. He come back again to visit the sisters and one night after drinking with them. He woke up and found out he’s tied. One of the sister gives him a handjob and cums prematurely and then he wake up again on the next morning still tied up. He was very humiliated and felt very ashamed and he made up his mind to train in sex technique to put her to shame…with the help of the other sisters.
