Chen Yuanlong, a humiliated live-in son-in-law, is cast out when his wife, Du Meiyan, leaves him for a wealthy heir. Forced to work as a security guard at her company, he’s mocked further—until it's revealed he's the sole heir to a billionaire tycoon. With his newfound wealth, Chen orchestrates the downfall of those who wronged him but chooses to quietly support his kindhearted colleague, Luo Lele. As Du Meiyan tries to win him back, he stays loyal to Luo and rises as a legendary business mogul, ultimately defeating a financial giant threatening China’s stock market.