Hepburn: 'mahou shoujo'; 'henshin heroine'
Magical girl are feature young girls with superhuman abilities, forced to fight evil and to protect the Earth. They often possess a secret identity, although the name can just refer to young girls who follow a plotline involving magic and a transformation.
On Danbooru this tag is used for characters dressed in a magical girl outfit.
The following tags are aliased to this tag: magic_girl, magical_girls, and mahou_shoujo (learn more).