Zentio is a cute little Bunny/Raccoon hybrid (Buncoon) that is, so far, seperate from Alter/Zoltan's story.
He lives in a quiet park inside a tree, his job is working for a magician in the Spring/Summer months as his assistant, he'll do the usual assistant stuff and then for the finale he'll usually be inflated in some various ways. On his off months he'll usually pig out on food and get plump without realizing it.
(Art by Samael and Happy Crumble for thumbnail)