A reminder from the nanny before her retirement leads Shen Qinglan, a major shareholder of Rongsheng Group, to discover a paternity test hidden in the secret compartment behind the family portrait, learning that Zhou Ziqian, whom she has raised meticulously for twenty years, is not her biological son. Suppressing her emotions, Shen Qinglan entrusts Lawyer He to launch an investigation, uncovering that her husband Zhou Jingchuan had an affair with his old lover Ye Wanqin in their early years, swapped two babies twenty years ago, and even used his position to misappropriate two hundred million yuan of company funds to subsidize Ye Wanqin. Shen Qinglan's biological son, Ye Zhiyuan, was mistreated by Ye Wanqin and dropped out early to make a living by delivering food.