Seiran Island is a paradise where perverted sex is permitted by law. The transfer student Junnosuke is a proud virgin that steadfastly values chastity. He believes that there should be no sex without love, counter to the rules imposed on the island residents. However, those who do not have sex are subject to immediate arrest, fellatio and intercourse! Will he and his friends be able to escape the clutches of the student council and disciplinary committee, known as the ‘SS’? Their battle to keep their virginity begins!