In the bustling city, there is a Dragon King named Zhang Xuan, who is respected by the world as Lord Satan. He owns half of the wealth in the world, but rarely appears in public. However, deep in his heart was a belief in repaying kindness. At a certain moment seven years ago, he was in deep trouble. It was a woman named Sylvia Lin who extended a helping hand and pulled him back from the edge of life and death. In order to repay his kindness, he hid his true identity, chose an ordinary residence, and became the door-to-door son-in-law of Sylvia Lin's family. He hoped to pamper his wife in his own way in these ordinary days, but he did not expect to encounter the cold eyes and criticism from those who only valued interests...
