1girl, ass, backpack, bag, barefoot, black_jacket, feet, girls'_frontline, grey_hair, hair_between_eyes, jacket, m200_(girls'_frontline), necktie, open_mouth, panties, purple_eyes, short_hair, simple_background, single_sock, sitting, skirt, sock_dangle, sock_pull, socks, spread_legs, sweat, underwear, undressing_another, unworn_socks, upskirt, white_background, white_panties, yuki_hotaru