A ragtag crew of criminals sentenced to clean a space train suddenly stranded in the void, and the show treats this disaster like the setup to a joke that never stops landing. The animation moves like it's built to keep you off-balance, characters talk over each other in ways that feel natural instead of annoying, and the pacing refuses to let you catch your breath long enough to realize how thin the premise actually is. By episode three you stop wondering what the plot is and start wondering how they're going to make you laugh in the next thirty seconds. The twelve-episode runtime disappears before you're ready to leave.
Six unlikely criminals find themselves assigned to scrub down an interplanetary train as punishment for their various space traffic violations. Chiharu and Makina are super humans and cyborgs respectively, joined by fellow offenders Akane, Kanata, Kurt, and Max, all of whom have their own reasons for being on the wrong side of Officer Ryoko's law. What should have been straightforward janitorial work becomes anything but when the Milky☆Subway suddenly lurches into deep space with no clear destination and no way to stop it. Stranded aboard a runaway locomotive hurtling through the cosmos, the motley crew must figure out how to survive while the train careens past asteroids, through cosmic storms, and into increasingly surreal situations. With no control over where they're going and barely a clue what they're doing, tensions flare, friendships form, and comedy erupts at every unexpected turn. This is space adventure filtered through pure chaos, where the journey matters far more than reaching any actual destination.