Yun Yichen, the former God of War, willingly married into the Xiao family in order to repay the kindness of raising him, and became a son-in-law whom everyone despised. Internal battles within a wealthy family, temptations from former enemies, and undercurrents of crisis for the family and country force Yun Yichen to gradually reveal his extraordinary identity. He endured humiliation and hardship all the way, stood up in crisis after crisis, won the recognition of his family, and his emotions sublimated. In the end, he fought side by side with his wife, defeated powerful enemies, defended his family and country, and became a legendary son-in-law.