Gu Yuanzhou was originally from a poor family, but as an orphan on the battlefield, he went through many hardships as a young wanderer. He accidentally joined the special forces and became a legend in the war zone. He retired from the army for some reason, and became the son-in-law of the wealthy Song family in response to a family favor. Since then, his status has been unknown, and the whole family has despised and even humiliated him. On the surface, he looks cowardly and incompetent, but in fact, he has a hidden edge. As the family falls into internal and external troubles, Gu Yuanzhou faces the pull of family, marriage and his own dignity, while hesitating to choose between interests, conspiracies, family and brothers. He gradually reverses the predicament by relying on his former battlefield wisdom and secret connections. Multiple forces clashed, trust and betrayal intertwined. Gu Yuanzhou went from being a humiliated bastard to turning things around, achieving redemption through growth and protection, and finally impressed the world.