mami

A normal girl turned protector of worlds after getting into a little accident, Mami now spends her time observing different universes from her base on the Hidden Side of the Other Moon with her alien lifeform friends (affectionately dubbed Starries). Whenever Mami spots an universe in trouble with her trusty Ruby Scrying Glass (not its real name), she jumps into action and crosses one of the many Universal Doors thanks to her special Love♡Key (not its real name) to try and rectify things!
Upon crossing into another universe, she gets the ability to slightly alter her appearance to be able to fit in better. Her Love♡Key also doubles as a wand or conduit for her powers, allowing her to transform into what's known in her original universe as a magical girl. Of course, this is only a small and silly display of her vast powers! She isn't known as the Witch of Dimensions for no reason.