Evil Favor: Charming Love and Wrong Love

When they first met, he was the noble Prince Rui, but she was a cold-faced killer. After a night of kindness, he knocked her off the cliff with one palm. When they met again, she was already a beautiful daughter in the palace, and he was his sister's fiancé! When they meet again, can they still hold each other's hand? Love and hate, it turns out they are so simple...