Go Back to Ancient Times and Dominate the Crowd

[Alternate history + daily life + relaxed + slow pace + multiple female protagonists + no system] Juan came to ancient times inexplicably. His dream is to be a handsome outsider who bullies men and dominates women when he has nothing to do, and then has a few beautiful concubines to become a cancer in the feudal society. Just when he was about to use his clever little mind and fight for it, he found that he was a refugee with no human rights. He was shamefully rejected even for borrowing loan sharks... So in order to solve the identity problem, he planned to go to the Li Mansion to work as a servant for a few days as a "false certificate", and then go on to take out loan sharks. But he became a teacher by accident, and thus started his happy life in this world. Miss, I am a serious person!