Married to My Ex's Uncle: The Black Dragon Lord

Quick answer: 5 episodes, English original audio, and episodes 1–5 play right here tonight.

Seven years of misplaced devotion, and on the eve of her bonding ceremony, Star Mage Alara was wagered away by her fiancé, Byron. To please a scheming beastkin handmaiden, Byron cruelly altered the soul contract, switching the groom to his notorious uncle—the Black Dragon Lord, Valerius—a man rumored to be a "cripple," with disabled legs and a cursed body. Faced with betrayal, Alara didn't shed a tear. She signed the contract without hesitation, becoming her scumbag ex's aunt!

During the bonding ceremony, a regretful Byron tried to crash the wedding, only to be crushed on the spot by Valerius's terrifying alpha presence. On their wedding night, the rumored "cripple" not only stood tall and powerful but also marked her completely with his searing black dragon's flame. And when Alara's starlight magic healed the black dragon's broken body, the once-arrogant scumbag could only kneel in the mud and gaze up in despair.