The World of Remnant (RWBY)

A shattered moon circles the world of Remnant. A world of stories stitched together.

As kids learn how to kill monsters and things worse than monsters plot in the shadows, six stones and their accompanying gauntlet fell down to earth and adjusted themselves for their new setting.

This being Remnant, the Gauntlet could probably turn into a gun. But anyone who picked it up was going to find a lot more than firepower.