High School boy and Yakuza

Though the man in front of me wore a kind smile, he pinned me down, asked if I wanted him to come onto me and whether or not I would be his love plaything. Up until then, I, Saki Fujisaki, was just an ordinary student, but because of my mother's debt, I was taken away by the yakuza. Either I do backbreaking work indefinitely, sell my organs, or.. Right.. With no other choice, I ended up as the young yakuza leader's love plaything. But is there something more..?! (Source: MangaPlaza) Note: Includes three extra chapters.