Nari is living her best life as a beautiful, wealthy university student on the prowl for hotties with her best friend, Miyeon. The pair live by Miyeon’s golden rule: don’t sleep with anyone at school. But Nari is having trouble abiding… When she accidentally hooks up with a junior from her university, the damage is done, right? What’s the harm in doing it again with another guy… or two? It was a silly rule anyway, right?