After my rejection I reveal my dual identity godfather of light and dark

Before my father died, he told me to take a marriage agreement to the Whitmore family and fulfill it. But when I walked into the engagement banquet, Elena was holding Julian's arm, receiving everyone's blessings. She tore the agreement apart in public and priced my father's life at eight hundred thousand dollars. Julian even smashed the obsidian badge my father left me and forced me to crawl out of the banquet hall on my knees. I did not argue.