Lin Tianyu was originally a concubine of a wealthy family, but he was talented. He unexpectedly became the son-in-law of the Su family. Not only was he looked down upon by his family, but he was also often ostracized by foreign forces. He is witty and humorous and uses his own way of dealing with problems to resolve many problems. He and Su Yaoyao, the eldest daughter of the Su family, went from being dissatisfied with each other to caring for each other, and gradually became a real couple. Faced with overt and covert intrigues and crises, family and country disputes, and personal growth, he rose up step by step, impressing the world with his wisdom that seemed cowardly but was actually sharp. The story has a tight rhythm and is full of twists and turns. It includes both lighthearted and funny daily family life, as well as the shadow of swords and undercurrents of aristocratic family intrigues. In the end, Lin Tianyu not only protected the Su family, but also reached the top of life.