From a magical girl with tons of energy and an explosive personality, along with actual bombs. To a tired boy just trying to take care of his mom by stealing just enough to keep them afloat while trying to find a job so he doesn’t need to steal to survive.
That tired boy is Brendon who somehow met the strange bomb shaped fairy that came up to him. Now with the magical item to help him transform, he becomes a magical…girl? I guess he now gets better strength, height and the abilities to summon any bomb, but now he loses the biggest advantages of a boy, actual pocket space. (Or no pockets I guess)