A character from Mahou Shoujo Madoka Magica.
She has long black hair, purple eyes, and wears a hairband. When transformed into her magical form, she wears high heeled boots that cover the entire legs, and sometimes also has a shield on her lower left arm. She primarily uses mundane weapons such as guns and bombs.
Her shield acts like a seemingly infinite portable storage space for her weapons, and also allows her to manipulate and travel through time.