Lin Yushuang, a veterinarian, likes to interact with small animals. Once, she went to the pet market and bought a cheap Czech boyfriend?
"What? My tank turned into a human? I'm warning you, if you disobey the pet agreement, I will neuter you!"
"Don't make trouble unreasonably. I, a prince, can't let a mortal like you touch my body. Don't worry, I won't get close to you, but I will protect you."
Lin Yushuang, who first proposed to sign the agreement, somehow fell in love with her pet, and his pet also gave up his position as the prince and stayed with the person he liked.
Concept: Cross-species love is not impossible, but you are not bold enough.