The aliens show up, the giant robot shows up, and nobody cares because Kazumi has a date. This OVA treats saving the world like an inconvenience to your personal life, not the other way around. Two episodes of pure comedy that understands the real enemy isn't alien invaders, it's scheduling conflicts.

Earth faces ongoing invasion attempts from a hapless band of aliens, and the only thing standing in their way is Ariel, a giant robot with a feminine design operated by young pilots. The catch is that these pilots have lives of their own that do not always fit around saving the world. When Kazumi gets a love letter from a secret admirer, she must decide whether to call off her first date to defend the planet. The fate of Earth is on the line, but so is her chance at romance. Ariel is a two-episode OVA mixing sci-fi mecha action with comedy about the gap between epic responsibility and everyday concerns.