Synopsis：The werewolf leader Declan has always regarded his son as the most important person in his life. In order to protect his children, he set strict rules: no woman is allowed to approach his family easily, and he will not let love interfere with his responsibilities. However, the appearance of the gentle and kind human nanny Mia completely broke his principles. On a full moon night, Declan accidentally discovered that Mia turned out to be the destined partner arranged for him by the moon god. One is a werewolf leader with powerful power and family responsibilities, and the other is an ordinary human nanny. The attraction between the two is both irresistible and full of taboos. As the divisions within the wolf pack intensify and the threat of the enemy looms, Declan has to face a difficult choice: Should he stick to his promise to protect his son, or accept the love that fate has bestowed upon him? A forbidden love that spans identity and race begins.