Sadistic Beauty: Oejeon B

Byun Minho watched Duna from behind as she was congratulated by everyone for winning the competition's grand prize. Minho had always believed she was beneath him. Feeling a mix of jealousy and defeat, he went to the school rooftop to cry his heart out. That day, Cha Wookyung secretly followed Minho and watched him quietly. Ever since he saw Minho spill his raw emotions, Wookyung dreamed of claiming Minho as his. After 7 years of waiting, Wookyung's vanquish begins now.

(Source: Bomtoon, translated)