I Tamed a Tyrant and Ran Away
Charlize Ronan was a child unloved by her family who volunteered to be experimented on and became an ego sword that because a national treasure of the emperor for 400 years. Her cries of pain and sorry fell deaf to the emperors who own her throughout all that time when she finally awoke again in the past to her original human form. This time, she vows to take revenge on her family and the entire empire for her pain and suffering by teaching and raising the genius prince to become a tyrant and destroy the kingdom. Once done, she leaves and disappears, believing her role to be complete.