Four powerful brothers have spent years searching for their lost princess. They finally find her, but a stolen silver necklace leads them straight to the wrong girl.
Luna, the true heir to the Wolf Kingdom, has grown up as a servant in her foster family's home, bullied by their daughter Jessica. When Jessica steals Luna's necklace and claims her identity, the brothers shower the impostor with love while turning against their real sister. One of them even nearly kills Luna to protect the girl who stole her life.
Then the full moon arrives. Jessica fails the royal awakening ritual, while Luna's first wolf howl erupts from a warehouse set on fire by her foster parents.
The brothers rush to save her, desperate to make up for their unforgivable mistake. But Luna is done begging to be loved. With a kingdom behind her and revenge on her mind, she is ready to take back her name. Jessica, however, refuses to surrender her stolen crown.
