kei (blue archive), kei (student) (blue archive), blue archive, commentary request, highres, 1girl, black hairband, black skirt, black thighhighs, blue necktie, blush, closed mouth, collared shirt, feet out of frame, hair between eyes, hairband, halo, invisible chair, jacket, long hair, long sleeves, looking at viewer, necktie, pleated skirt, red eyes, red halo, shirt, simple background, sitting, skirt, solo, thighhighs, uechan kazu, very long hair, white background, white hair, white jacket, white shirt