The Beastman Who Dumped Me Came Crawling Back

Ayla sacrificed her own blood to help a defective merman transform and awaken his magic, only to raise the ultimate traitor. He fell for another woman, shoved her into a beast horde, and left her to die. After breaking their bond, Ayla chooses a discarded snake beast instead—only to discover he's the last heir to the Ancient Dragon bloodline.