Claire, a veterinarian, signs a one-year blood-bond marriage contract with Kain, the Wolf King hiding under the identity of a carpenter, to raise funds for her younger brother's surgery. Kain is actually the Silver Moon Wolf King who controls immense wealth. He conceals his identity only to evade conflicts instigated by the hostile Dark Wolf Clan.
Richard, a property developer acting on the Dark Wolves' orders, attempts to forcibly demolish the town. Claire steps forward bravely to protect her hometown, and affection gradually blossoms between the two as they spend time together. When Kain's werewolf identity is revealed, Claire's scent alone can calm him when he loses control.
The husband and wife join forces to gather evidence and dismantle a string of plots including kidnapping and forced demolition. All villains are brought to justice. They tear up the contract and hold a genuine wedding. Years later, the family of three settle peacefully in Silvermoon Forest, where humans and werewolves of the town live side by side in harmony.
