Reborn for My Happy Ending

Kim Hui Won once believed in love, but the end was a betrayal. Bae Jun Hyeok, the man she risked all of, sold her information to his enemy in order to protect his fake identity. Eventually, Hui Won was brutally murdered as she was targeted for revenge. Faced with her body, Yun Seong U followed her to death after being enraged and killing all who killed her. But Hui Won opened her eyes, back in her senior year in high school.

Synopsis: MyDramaList