Van is a man made entirely of spite moving through a world that keeps giving him reasons to feel it. The show wraps a tired revenge plot in a Western that refuses to feel like anything else on TV, mixing gunslinger standoffs with mecha that feel like they belong there. Wendy arrives as an accident that becomes the actual story, and by the time you realize Van's been changing the whole time, the show has already changed what you came for.
Van wanders a desolate world with a single purpose: find the man with a claw for an arm and kill him. The murderer took everything from him, and vengeance is the only thing keeping him moving. His path crosses a desperate girl named Wendy in the town of Evergreen, where bandits terrorize the streets and her brother has vanished without a trace. When the city begs for help, Van refuses. It's not his fight. He walks away. But the world has a way of pulling people back in. Van's indifference shatters when he encounters the same bandits, and his fury finally ignites. What starts as a personal rescue becomes something larger. Wendy latches onto this strange swordsman, hoping he'll help her find her brother. Van never asked for a traveling companion or a reason to care about anyone else, yet here she is, and here he stays. Gun x Sword balances intimate character drama with intense action across a harsh, mysterious landscape. It's a story about two broken people learning to matter to each other while chasing ghosts of their pasts.