Long Yuan, the former war god of the frontier, was demoted as the Su family's son-in-law due to a power struggle. Although his status was restricted and he was repeatedly scorned, he gradually fought back with perseverance and forbearance in the turbulent family. The struggle for the interests of wealthy families, the rebellion of old comrades-in-arms, political undercurrents, and grievances in the world are intertwined. With his iron blood and wisdom, Long Yuan went through self-redemption and family intrigues, and gradually uncovered a conspiracy that swept the temple and the world. In the end, he broke through the limitations of his identity, discovered the profound connection between his personal destiny and the rise and fall of his family and country, completed the rescue of his family, family, comrades and himself, and became the true 'God of War son-in-law'.