Lin Xuan, the God of War, returned from the frontier. He was plotted by his family and became the son-in-law of the top family in the capital. He did not want to show weakness to his fate. When he first stepped into the Su family, he was treated coldly by family members and even regarded as a laughing stock by the outside world. However, undercurrents are surging, and the Lin family and the Su family are intertwined in their intrigues. Lin Xuan has the blood of a subjugated country and the cause and effect of his previous life. Family justice is intertwined with the hatred of the country and the family. External enemies are dormant, and internal worries are hidden. As a 'good-for-nothing son-in-law', he must not only protect his relatives, but also solve the mystery of his identity, reveal the truth, and complete the ultimate revenge of family hatred and country hatred. Growing up among various heroes, brothers, wives and families, Lin Xuan gradually rose up and eventually led the change of power and saved the common people. The multi-line story covers the battles between rivers and lakes, the struggle for power, family emotions, the rise and fall of the world, and the fate of the characters is intertwined and sublimated step by step.