Mi pantera me traicionó, conseguí dos dragones dos por uno

My leopard partner abandoned me to save my sister in danger, so I switched my blood contract to a pair of dragon brothers. The younger brother dotes on me, while the elder hides his Obsidian power and spoils me. My father suppressed my bloodline for my sister. With my dragon lovers, I exposed all schemes, punished villains and gained wealth and two loyal partners.