1girl, anime, chibi, full body, solo, masterpiece, highly detailed, exquisite detail, high definition, best quality, ultra highres, KeiBlueArchive, light skin, white hair, long hair, black headband, scarlet eyes, red-pink halo, rectangular halo, two-tone jacket, black vest, white shirt, collared shirt, blue necktie, black skirt, black thighhighs, black loafers, cute, mischievous face