I recommend the book "Reborn Couple in a Different World" to you. Although the main character was not a pet, there was a scene where the female lead said that the magical beast pet was a dragon and did not want it. She asked why, because dragons could transform into humans. The male protagonist became a fat prince in the experience. This novel also involves interracial romance. I believe it can satisfy your needs ~ I hope you will like this fairy's recommendation. Muah ~