Qin Yuan, the god of war in the immortal world, was plotted by others. After his death, he was reborn in the city and became the son-in-law of the Su family. Faced with his wife's indifference, his mother-in-law's difficulties, and the covetousness of all forces, Qin Yuan gradually rose up in the city by relying on his memories of his past life and his immortal methods. He protects his family, punishes evil and promotes good, and resolves crises. At the same time, he secretly investigates the truth about his death in his previous life. As the investigation deepened, he discovered that enemies from his previous life had also infiltrated into the city, and a conspiracy spanning the worlds of immortality and mortals gradually emerged. In the end, Qin Yuan regained the power of the God of War, protected the city, and avenged his death in his previous life.