For three humiliating years, Ethan Vance was treated like worthless garbage. ​As the despised live-in son-in-law of the Sterling family, he scrubbed floors, cooked meals, and endured constant abuse from greedy relatives. Riverdale high society mocked him as an unemployed beggar living off his hardworking wife, Clara. Only Clara stood by him, refusing to divorce him despite crushing debts and threats to her business. ​Nobody knew the truth: Ethan is the sole legitimate heir to the Vance Sovereign Clan, an empire worth hundreds of billions. He endured poverty and silence only to honor a deathbed promise to Clara’s late grandfather, quietly purging a lethal cellular poison from his veins. ​Now, the clock strikes eight. The three-year vow is over, and the poison is gone. ​When ruthless predators and corrupt relatives corner Clara to steal her lab, Ethan finally unleashes his true power. Armed with an unlimited black card and the city's largest conglomerate, the live-in beggar becomes the supreme king. ​Those who mocked him will beg for mercy. Those who touched his wife will lose everything.