1girl, all_fours, ass, blue_buruma, blue_hair, blush, buruma, from_behind, gym_uniform, idolmaster, idolmaster_cinderella_girls, long_hair, looking_back, maremay0513, red_eyes, sajo_yukimi, shirt, shoes, short_sleeves, socks, solo, thighs, vaulting_horse, white_footwear, white_shirt, white_socks