Hwangnyeonimi Saakasyeo

A witch who lived for over 300 years was killed by someone she trusted and ended up in the spiritual world. Unexpectedly, she was reborn as a princess in a brutal imperial family known for sibling violence over the throne. Deciding to take control, she aims to become emperor, conquer the continent, and seek revenge against Lacuz. Embracing her witch heritage, she uses her power to gain influence, even winning the support of rival princes. Despite her efforts, she finds that fear does not come as easily as she expected.