1girl, black_hair, blush, covered_navel, hair_ornament, hair_ribbon, inakami, lab_coat, long_sleeves, looking_at_viewer, old_school_swimsuit, one-piece_swimsuit, onii-chan_wa_oshimai!, open_mouth, oyama_mihari, ribbon, school_swimsuit, short_hair, solo, swimsuit, swimsuit_under_clothes, yellow_eyes