The lower-class human Deb spent all her savings to buy the infertile top-level fox beast Jamarion. However, he disliked her low social status and ordinary appearance, and had an affair with the high-ranking female Gianna. He even pushed her into the hospital after injuring her. Disheartened, Deb decided to change the beast and chose the giant wolf beast Markus - he was fierce in appearance but timid and prone to crying. He was extremely loyal to Deb. When the former beast Jamarion saw that Deb no longer looked back, he panicked and confessed, "Is it too late to say I like you now?" Deb refuted his "likes" one by one and decisively left. Eventually, Jamarion was abandoned by Gianna and depressedly sent to an orphanage; while Deb and Markus had a sweet bond and gave birth to a daughter. The former beast was too late to repent, and the new beast was the loyal dog HE.
