Shin chan Spin-off

When a monster born from a grudge attacks young Fumie Sakura, Shinnosuke and his father come to the rescue.

Fumie takes father and son back home with her. Shinnosuke senses a strong monster vibe and they discover a cleaning monster.

Fumie convinces Shinnosuke and his father to form Monster Busters with her to tackle monster-related problems. Her attempts at advertising are interrupted by a monster.

Monster Busters are hired to take care of a monster infestation at a hot spring inn. They arrive to find the cause isn't monsters, but a group of partying people.

Fumie spots a single tattered monster glove walking in the rain and presumes it has lost its owner. She feels sorry for it and brings it home.

Fumie hears of a camping site where people are going missing. She investigates with Shinnosuke and his father, and they discover a group of people who've been turned into mushrooms deep in the forest.