Would you love someone who is broken? When you get the chance to love a whole person.
The same is true in the world of fairy tales. Would you choose a mouse as a pet? When you have so many normal yet cute options?
There was a mouse whose dream was to become a human pet, so he was a madman in the eyes of all the mice.
Concept: There is a mouse who is tired of being hated by everyone and longs to become a human pet. Rats are small but have big dreams. If their dreams are out of touch with reality, they will inevitably be considered crazy. So how can a mad mouse realize his dream?