SEX 30th Anniversary Edition Vol.4 by Kamijo AtsushiKaho, Yuki and Natsu return to Okinawa and find themselves involved in a confrontation between yakuza clans. Meanwhile, Kaho meets a mysterious woman, who has color blindness and whose name is Yuki. How is this possible and what exactly does it mean? In the meantime, Higa's burial takes place. But he, supposed to be dead, appears and manages to escape with Yuki thanks to the bomb placed by Natsu. But the young boy is seriously injured in an exchange