To pay off her father’s $3 million debt, ancient Dragonkeeper descendant Amelia Rose enters a one-year contract marriage with reclusive billionaire Damian Drake, whose strange penthouse and occasional dragon features make her suspicious; she later discovers he is the last pureblood dragon who married her to fulfill an ancient covenant, and he fully reveals his dragon identity to her at the Episode 10 paywall. Starting from mutual suspicion, their relationship turns into true love as they unite to fight Victoria Blackwood’s cruel schemes and persistent dragon hunter Serra North, with their unique bloodline resonance bonding them deeply. In the climax, Damian transforms into his complete dragon form to save Amelia’s kidnapped sister and exposes his true identity to the public, and the two later co-found Dragon Bridge to eliminate barriers between humans and dragons, turning their transactional marriage into sincere love and voluntarily remarrying to usher in a new era of interspecies coexistence.