Lin Xuan, the former god of war on the frontier, was invincible, but due to a conspiracy, he was forced to remain anonymous and became the son-in-law of the wealthy Ye family in Nandu. Scorned by the outside world, ignored by his family, and looked down upon by his father-in-law, Lin Xuan Yin reluctantly gave in. While he was struggling to survive in the secular world and silently guarding the Ye family, which was gradually facing crisis, he was secretly investigating the conspiracy of his former enemy Li Qingyun in the army. Ye Shuran was disdainful at first, but gradually saw Lin Xuan's extraordinary temperament, and his emotions warmed up. At the same time, Lin Xuan's identity was gradually revealed, triggering greater disputes among the powerful families in Nandu, and gradually involving multiple struggles among old friends on the battlefield, underground forces, and upper-level intrigues. Lin Xuan continues to grow under the intertwining advancement of multiple story lines such as family and friendship. After experiencing disappointment and betrayal, he fought a last-ditch effort to regain his reputation as the God of War, protect his family, resolve deep hatred, and ultimately redeem himself. The novel combines the grievances and emotional growth of urban wealthy families, the military and the military, and goes hand in hand with multiple lines to profoundly demonstrate the male protagonist's growth epic of "endurance, perseverance, and rebirth."