On the surface, Yunhai City is a prosperous city where capital and wealthy families control everything, but secretly it is controlled by a gray chain of interests spanning military industry, real estate, and underground security. The protagonist was a top war god who guarded the border in his previous life, but was betrayed and killed in an "Operation Fault" involving high-level secrets. He was reborn and returned to the third year when he became the Lin family's son-in-law. The so-called "fault" refers to the gap in the truth that was artificially cut off in the action files at that time, and also the life that was separated by lies from his wife, family, and old department. The protagonist must navigate the city while carrying the identity of a useless son-in-law, while using all-powerful means to find out the fate of his past life, defeat the rich and the masterminds behind the scenes, and regain his name and dignity.
