Ai ga Omome na Ookami Denka wa Unmei no Tsugai wo Nankin-chuu

The Kingdom of Brize is a country where beastmen live. Lili, who lives a poor life with her younger brother, is a hybrid (double) born between a beastman and a different species. When the castle becomes short-staffed due to the prince's search for a mate, she is offered a high-paying job as a maid! However, when she meets Phil, the wolf prince, she is chosen by his pure-blood instincts to be the bride of the first prince, who says, "You are my beloved mate!"

(Source: Kodansha, translated)