It hands you a farm boy, his little sister, and a horse named Lovely, then drops a fake meteor in the field and dares you not to grin. Kazuma Harukaze is exactly the kind of protagonist the genre stopped making: no trauma, no chosen-one moping, just a kid with too much energy and Mt. Fuji sitting in every establishing shot. Hinkeeru shows up as a messenger from Muzanda with a doomsday warning, and the answer to that warning is a robot horse called Robony, which tells you everything about the register this thing is playing in. The title itself, one shot, dead center, is a promise about pacing: single episode, no setup for a sequel that never came, in and out before it can overstay. It's the kind of short that reminds you mecha used to be about a boy and his animal before it was about depression.

A carefree farm boy named Kazuma Harukaze lives a simple life in the shadow of Mt. Fuji alongside his sister Sakura and their horse Lovely. His quiet existence shatters when a mysterious object crashes from the sky. What appears to be a meteor reveals itself as something far stranger: Hinkeeru, an alien messenger from Muzanda, and Robony, a mechanical horse. Hinkeeru has come to warn Earth that a serious danger is on its way. The result is a single-episode mecha action OVA built around a spirited country kid and his unexpected visitors.