Qin Lie, the dragon commander of the northern border, returned home anonymously to atone for his sins. But he saw that the girl who had been humiliated because of him had given birth to a daughter for him and withered in the world. When his daughter was trampled under his feet, he slowly took off his coat: "Dad, you have been waiting for a long time." At this moment, the entire city will hear the dragon king's roar.