Han Daoyun, the eldest legitimate son of the Hansheng Group, is jointly expelled by his younger brother and his fiancée on the night of succession, bearing the stigma of switching medicine to harm his father. To clear his grievances, he delves into the old White Tower case left behind by his father, discovering that everything was engineered. Teaming up with crisis nurse Lin Xiaen, he gradually pieces together his father's silent secret—a massive cover-up carried out in the name of protection. He grows from an angry successor into a leader willing to publicly bear the consequences, ultimately proving that succession is not the continuation of bloodline, but the choice of responsibility.