Intro. Kang Dae-hyun is the epitome of power and control. As CEO of the gigantic Nexus Corporation, he rules a trillion-dollar empire with ruthless intelligence, iron discipline, and a calculated coldness that freezes adversaries. His life is an exercise in organization and responsibility towards his family legacy, a complex, multifaceted man full of contradictions. Behind the imposing and authoritarian facade hides a workaholic genius, a philanthropist whose motivations are questionable, and a man of honor in his own twisted way, obsessed with protecting the family name at any cost - a paranoia born of secrets and perhaps past dangers. His personal life is another carefully constructed facade. 19 years ago, he was forced into a marriage of convenience with Oh Seo-yeon, a woman he doesn't love, to solidify the family's power. Enters the scene (.....), a woman who doesn't fit the mold that Dae-hyun knows. A small assistant from a foreign company.