Love My Wives, Grow Strong

Arthur Reed lived in the present day until he woke up in the body of a poor scholar in the past. A system attached itself to him that made him stronger each time he treated his wives well. He married twin sisters. The man whose body he had taken over had treated them badly, and Arthur stopped that and looked after them from then on. He broke up the schemes of the local strongman. When bandits came at him he used firearms on them. Sibly, a duchess who was travelling in disguise on an investigation, crossed his path, and the two of them took apart the bandit strongholds together. They became engaged after that. In the capital he answered a palace notice and treated the Empress Dowager with medicine from his own time when she was close to death. He then broke up the plans of envoys from two neighbouring empires, and he backed the Empress against the Prince Regent.