A guy who wants to cook gets conscripted into a mecha war because he followed the wrong girl off a space colony. The show knows this is absurd and never pretends otherwise, which is exactly why it works as both comedy and legitimate commentary on every mecha trope it's riffing on. Nadesico parodies the genre by taking it seriously, then takes itself seriously by treating the parody as real stakes. The tonal whiplash should destroy it, but instead the show balances on that knife edge by making you care about people who live in a world that knows it's ridiculous.
Akito wants nothing to do with war. A cook at heart despite growing up obsessed with the mecha anime Gekiganger 3, he's content to stay out of the fighting until his life on Mars literally explodes. Transported mysteriously to Earth, he catches the eye of Yurika, the enthusiastic captain of the private battleship Nadesico, and follows her aboard as the ship's chef in hopes of finding answers about what happened to his home. The problem: the Nadesico is humanity's ragtag response to an alien threat, and Akito's latent piloting abilities make him indispensable in combat. Surrounded by a crew of self-proclaimed otakus, goofballs, and conspiracy theorists who are secretly elite soldiers, he finds himself torn between his pacifist ideals and the desperate need to fight back. As the Nadesico pushes toward Mars for revenge, Akito discovers the war is far more complicated than anyone aboard realizes, and the truth might be worse than the mystery.