2girls, o, arm_hug, ass, asymmetrical_bangs, black_socks, blush, braid, braided_bangs, couch, full_body, grey_hair, hisakawa_hayate, hisakawa_nagi, idolmaster, idolmaster_cinderella_girls, kneehighs, knees_up, long_hair, looking_at_viewer, miroir_(idolmaster), multiple_girls, no_shoes, nomura_teruya, on_couch, panties, pantyshot, plaid, plaid_skirt, pleated_skirt, siblings, sisters, sitting, skirt, smile, socks, straight_hair, thighs, twins, twintails, underwear, very_long_hair, white_background, white_panties