1girl, aqua_eyes, black_thighhighs, breasts, grey_hair, kuromiya_sakana, looking_at_viewer, medium_hair, one-piece_swimsuit, open_clothes, open_skirt, original, pleated_skirt, school_swimsuit, school_uniform, serafuku, skirt, solo, swimsuit, swimsuit_under_clothes, thighhighs, undressing, white_background, zettai_ryouiki