Mum is a hyperactive and energetic cat, constantly running around the whole forest and inspecting every square inch of the area. Rust, out with Mum, has to cover his mouth so he doesn’t shout at random people or tell one of the cats Rust is talking to about their location. Mum is very bratty at times, hogging all the food for themselves while at the luncheon, refusing to talk when he should be explaining himself, and knocking over structures that other cats have built. Though, when not being an absolute goblin of a cat, he is usually pretty quiet and sleepy. He enjoys to watch birds through the window when he has free time or has to stay home alone.