The title lies to your face. You expect a giant robot war epic, you get three robots discovering what laughter means while the pointless conflict grinds on without them. That gap between what the show pretends to be and what it actually is, is the entire joke, and it never stops working.
Eight thousand years after humanity vanishes from Earth, the machines they left behind still fight. Robots pilot robots in an endless conflict between the Rebellion Federation and the Principality of Shin, locked in a war nobody remembers starting and nobody knows how to stop. Three young soldiers find themselves fed up with the senselessness of it all and decide to do something radical: actually end the fighting. But breaking a cycle that's lasted millennia proves harder than righteous conviction. Their attempts to broker peace, sabotage weapons, and question orders collide with military hierarchies, propaganda, and the simple fact that war is what these machines were built for. The show wraps its commentary on institutional violence and blind obedience in comedy and mechanical action, letting absurdity cut through the despair. Expect robot misadventures mixed with genuine moments where the weight of their mission sinks in. It's a short show with a sense of humor about its own genre, one that asks whether questioning everything might actually be the most mecha thing you can do.