Excellency, a revered and extraordinarily wealthy patriarch, spent his life mentoring others, teaching principles of integrity, and guiding countless souls toward virtuous paths. After his death, his family drowns in years of mourning-until his eldest son uncovers a cryptic will. The document demands a gathering of all relatives at the family's ancestral estate to play His Excellency, a ritualistic game designed to test allegiance and expose hidden betrayals. As the heirs converge under the mansion's ominous shadow, long-buried resentments surface, alliances fracture, and the patriarch's true motive emerges: a final lesson in loyalty, where the stakes are legacy, trust, and survival.