1girl, armpits, arms_behind_head, arms_up, bare_arms, bare_shoulders, black_one-piece_swimsuit, blush, breasts, brown_eyes, brown_hair, closed_mouth, dated, higanbana_no_saku_yoru_ni, kusunoki_midori, medium_breasts, mouth_hold, name_tag, one-piece_swimsuit, sakurazawa_izumi, school_swimsuit, sidelocks, signature, solo, swim_cap, swimsuit, unworn_swim_cap, upper_body, wet, wet_hair, white_headwear