The geometric monsters come from the hands of the prototypist’s Doomsday. Their simple appearance and colorful colors have a magical healing function, and are called "cute snipers" by consumers. The geometric monsters tell of a small planet named GM star in the distant time and space, on which a group of geometric monster creatures live. They don't cry or laugh, they just repeat the ordinary day after day quietly and numbly. Until one day, a meteor in the sky changed everything...their bodies changed!