Four adorable girls who are actually personified rifles gather at a shooting range for a casual day of fun and competition. What starts as innocent target practice quickly devolves into comedic chaos as their competitive spirits clash and their weapons-grade personalities create explosive situations. The chemistry between these gun-girl characters sparks endless gags, from playful rivalry to absurd mishaps that keep the mood light and silly throughout. Suggestive humor runs through every scene as the girls celebrate their love of firearms in ways that are more cheeky than serious. The OVA captures the franchise's signature blend of military hardware fandom and slice-of-life comedy, trading plot for pure entertainment value. Viewers looking for straightforward action or narrative depth will want to look elsewhere. Instead, expect a brief, self-aware romp that leans hard into its premise's inherent absurdity while celebrating the bond between these quirky characters.