SEX 30th Anniversary Edition Vol.1 by Kamijo AtsushiOne summer in the late 1980s, a high school girl goes to Okinawa in search of Natsu, a childhood friend. She wanders around town until she meets a young man whom she mistakes for Natsu but who turns out to be a notorious delinquent, Yuki. Prompt to violence and dangers, she nevertheless decides to follow him because she feels that he is connected to Natsu, in one way or another, without knowing that she will find herself in the middle of a conflict