Meet Bunso, a boy with a really scary problem. It’s the Mumu, the Filipino version of the Boogeyman, who likes to punish kids who misbehave by sucking the fun out of everything! The Mumu will not let Bunso draw (on the walls), eat ice cream (before dinner), or play video games (his older brother’s). But Bunso has had enough! Gearing up to fight back against this destroyer of fun, Bunso makes surprising discoveries about the Mumu (and himself) in this fun, comic-like illustrated picture book that introduces children to Filipino culture and words.