kei (blue archive), kei (student) (blue archive), blue archive, absurdres, commentary, highres, 1girl, black hairband, black skirt, black thighhighs, blue necktie, blush, closed mouth, coat, collared shirt, feet out of frame, hair between eyes, hairband, halo, jacket, long hair, long sleeves, looking at viewer, mamyu 040, necktie, open clothes, pink eyes, pink halo, pleated skirt, rectangular halo, red eyes, red halo, shirt, simple background, skirt, solo, thighhighs, very long hair, white background, white hair, white jacket, white shirt