Dana

Se-ryeong became part of Hae-joo's family over ten years ago, after Hae-joo found herself alone. Se-ryeong harbored feelings for Hae-joo that he shouldn't have, and he began to feel hurt as Hae-joo paid less and less attention to him. Unable to bear it any longer, Se-ryeong crossed the line he had always maintained and asked Hae-joo to help him masturbate. Hae-joo couldn't refuse Se-ryeong's request.

In a world where sex rules everything, 69 University is the best sex college in the country. Students here will become the leading talents of the country’s sex industry. Hidden behind the prestigious title, 69 University’s dirty side is a promiscuous campus life where the moaning never stops. …Will I be able to graduate safely?