The Uninvited Werewolf King Fiancé

In a world where humans and supernatural beings coexist, an ancient pact ensures harmony between the species. Every five hundred years, a human family is chosen to offer a bride to the leader of the Alphas, the strongest and most feared among the supernatural beings. Diana, a young receptionist living in bustling São Paulo, is the chosen one this time. She doesn't believe in these stories of agreements and thinks it's all just a fable told by the older members of her family.
But when a mysterious and attractive man appears at her door, claiming to be her destined fiancé, she finds herself in a complicated situation. Christophe is the Supreme Alpha, the king of all supernatural beings, who has come to claim his mate and will not take no for an answer.