On the night of the full moon, human girl Hailey wanders into the Moon Goddess’s forbidden territory and meets Will, prince of the werewolf clan. They fall in love at first sight, and their first kiss mysteriously heals Will’s wounds. But noblewoman Lina frames Hailey for drugging Will using a forged wolf stone. Believing the accusation, Will coldly drives Hailey away, while Lina throws her off a cliff.
The Moon Goddess saves Hailey and reveals she is carrying twin Wolf Kings. Hailey takes refuge on Moonlight Island and gives birth to her son, Neo. Two years later, Neo’s twin wolf spirits spiral out of control. The only cure is the legendary Moonstone.
Hailey returns to the Harrison Wolf Territory under a false identity and approaches Anthony, the second prince, to obtain the Moonstone. Will recognizes her and relentlessly pursues her. Hailey repeatedly rejects him to protect her son’s secret.
Meanwhile, Lina conspires with Anthony to unleash a terrifying flame beast. Will kills Lina, ending her schemes. Anthony sacrifices his life to protect Hailey. After surviving betrayal and deadly battles, Will kneels before Hailey and asks her to marry him. They complete their sacred mating ceremony, and Hailey becomes his one and only Luna. Hailey, Will, and Neo are reunited as a family.
