Akuyaku Reijou ni Narimashita ga, Nani ka？

Felicia was betrayed by her fiancé, the crown prince, and was on the verge of being executed. However, the scorn of the saint who tempted him triggers her to awaken the power of "rewinding time"... "I'll make sure I don't make the same mistake next time. If everyone calls me a villain, then I'll act just like them." A terrifying tale of revenge begins, traveling back in time.

(Source: Mangabox, translated)