Seonbaeneun Nappayo!

Lily, who is only attracted to bad guys and has never dated in real life. While waiting for a bad guy to approach her and building an iron wall against the nice guys, she meets Hyunwoo, the school's biggest trash senior. Lily goes straight to Hyunwoo, her ideal type for a thousand years, but Hyunwoo's reaction in return is cold and painful... But after experiencing this firsthand... it's actually good?!

(Source: Naver, translated)