Akko-chan's magic compact works best when the show doesn't take itself seriously, and a summer festival trip where the guys stumble into genuine haunting while she's somewhere else entirely is exactly that permission slip. The movie operates at the energy level of kids' adventure comedy from 1989, cheap thrills, practical effects, running around in panic, and commits completely to the bit. You're watching because the premise is dumb enough to actually work, and because watching a magical girl property subvert its own safety net by letting regular kids get legitimately spooked is the kind of left-field choice only an 80s direct-to-video release could get away with.

Akko and her friends head to the ocean for a summer festival, but the boys slip away from the group to visit an island said to be cursed. The title promises ghosts along with the sea and festival fun. This 1989 comedy film continues the magical girl adventures of Himitsu no Akko-chan, following an earlier movie released that same spring.