Monga is an anthropomorphic purple momonga flying squirrel who wears a blue tuxedo and a top hat featuring a skeletal face design. He serves as a supporting antagonist within the "Fantasy of the Apple Forest" trilogy narrative, operating as part of a sibling pair. A mage, Monga wields magic abilities specializing in theft. His central objective is stealing the Apple Pendant from the fairy Pururu. He works alongside his sibling, Montine, a pink momonga characterized by a pink bow, long-sleeved dress, and pearl necklace. Monga is classified among the secondary characters within the series structure.