Simon returns to the powerful family where his grandfather once served, driven by a relentless thirst for vengeance over his parents' tragic deaths. As the new butler, he skillfully sows discord between the master and his wife, seduces the young heir, Allen, and methodically eliminates every enemy in his path. But just as his revenge reaches its climax, a shocking truth is revealed—Simon is the master's biological son, the rightful heir to the empire. Yet what he never expected was to truly fall for Allen. Caught in a web of love and hatred, the two are torn apart by an unrelenting cycle of vengeance, unable to escape the fate that binds them.