Love My Wives, Grow Strong

Arthur Reed, a modern man, travels back in time as a poor scholar with a system that rewards him for spoiling his wives. He marries twins, defeats bullies and bandits, and gets engaged to Duchess Sibly. In the capital, he saves the Empress Dowager, foils foreign plots, and helps the Empress defeat the regent. He then rejects power and retires peacefully with his wives.