The queen of the last days became a maid and just wanted to lie down

Slow-burning, not a brainless and cool story. There is character growth in the early stage. Don't be impatient. Xu Yao lived in the end times in his previous life and was a cold-blooded killing machine. After death, he was reincarnated as a maid of the Liu family in the Minister's Mansion. She cherishes a stable life, but the lady doesn't want to. After the lady fell into the water, her temperament changed drastically. She rejected the proposal of her childhood sweetheart, the Duke of Zhenguo, and insisted on entering the palace to be the queen. Xu Yao didn't want to enter the palace. She heard that there was a fairy mountain in the North Country, where one could cultivate to become a fairy. She took the opportunity to leave the Liu family and wanted to seek the truth in a distant place. But she encountered the Duke of Guo's Mansion confiscating the family and exiling. She was kind-hearted for a while, saved the Duke of Guo, and was forced to accept an apprentice. She thought that the apprentice would be independent and leave, but she didn't expect the apprentice to go crazy...