Crayon Shin-chan Gaiden: O-o-o no Shinnosuke

A quiet country town has recently become a magnet for inexplicable supernatural incidents. Into this uneasy place arrive the youkai kindergartner O-O-O no Shinnosuke and his equally strange father, Tamatama Dad, who are searching for the runaway Big Butt Mom.

When local schoolgirl Fumie Sakura is attacked by the hairy youkai Fuzzy Wuzzy, Shinnosuke intervenes and becomes involved in the town's mysteries. Their meeting draws them toward one bizarre creature after another, and what began as a family search grows into a sprawling youkai case with Shinnosuke's usual irreverent behavior at its center.