He's Mine, Don't Steal It from Me

She came from modern times and wanted to pursue handsome men and powerful people, but in the end she found that he was the best person around her. He was originally his servant. He didn't have a handsome appearance. He just wanted to abide by his benefactor's orders and protect the young lady. He had no desires and no demands. However, he couldn't help himself in the world. Since life couldn't be ordinary, he would carve out a world for her.