Mist Gears Blast begins with the "Day of Purgatory" marking the arrival of Mist, a calamitous mist that becomes the worst disaster in known history. Life crumbles with its arrival, and strange beasts emerge from it. Humanity seems to be on the path to extinction. 70 years after the Day of Purgatory, the Valks Kingdom begins "Mist Gear," a project that will restore hope to humanity. (Source: Anime News Network)

Mist Gears Blast is part of a multimedia project from mobile gaming company Alim, video game developer tri-Ace, and publisher Shueisha. The project also consists of a novel and a video game.