A dangerous enemy named Black Darkness has been unleashed, threatening to destroy the world. Ink, Sumi and their sidekicks travel to the magic kingdom to battle her.

Having completed their mission to save the world, Ink and Sumi return home but they can no longer transform or use magic. Ink becomes depressed because she can't help Nao-kun study English anymore. When Sumi realizes this she devices a plan to help Ink -- by recreating their uniform so that they can cosplay as magical girls.