Gariben, a classmate of Harumi Fudo, belongs to the Night Patrol—a group including Tsutomu, Supokon, and Renkonman—that investigates supernatural phenomena at their elementary school. Recognizable by his glasses, he embodies the team’s intellect, though his analytical nature frequently collides with chaotic demonic forces, triggering comedic misadventures.

In a manga arc, Gariben’s assured test preparations unravel when a brain-sucking bee sting reduces him to childlike antics. After the group resolves the crisis, a restoration error traps his consciousness in Kapaeru’s body, forcing him to navigate school life in a mismatched form. The anime adaptation amplifies this chaos during Sunyudo’s demonic assault: bees extract his brain, leaving him reliant on allies until his mind is accidentally transplanted into Kapaeru’s body, while Kapaeru’s consciousness inhabits Enma’s form.

Gariben’s narrative revolves around episodic supernatural crises, with transformations—physical or mental—serving as catalysts for humor. His dynamic with the Night Patrol and Yokai Patrol positions him as a secondary figure whose mishaps propel both plot progression and lighthearted absurdity, anchoring his role within the series’ balance of mystery and comedy.