This is the kind of one-off special that slips past your defenses precisely because it isn't trying to impress you. Sachiko pushes her food around the plate and then gasses out in PE class, and the show treats that small private humiliation with more care than most series give a war. Then a white rabbit turns up, and instead of a quest you get the Land of the Moon and a princess wearing Sachiko's exact face, living the version of her life where she eats what's in front of her and can actually run. No villain, no escalating stakes, just a mirror with better posture. It's 1983 pacing, which means it breathes instead of sprinting. Put it on when you want something that ends with a kid quietly deciding to try, and actually means it.

Sachiko is an unhappy girl whose fussiness about food leaves her short on energy, and she does badly in her school PE classes. One night a white rabbit appears and carries her off to the Land of the Moon. There she meets a princess who is her exact double, except that this girl is lively, cheerful and healthy. Seeing her true self in the princess, Sachiko realizes she could be the same, and the meeting spurs her to change her habits. This single fantasy special is a gentle story of self-improvement.