1girl, ahoge, ariaridoradora, ass, back, black_panties, braid, braided_ponytail, brown_hair, cameltoe, clothes_lift, from_behind, hair_over_shoulder, idolmaster, idolmaster_shiny_colors, kuwayama_chiyuki, long_braid, long_hair, panties, puffy_short_sleeves, puffy_sleeves, red_skirt, shirt, short_sleeves, single_braid, skirt, skirt_lift, solo_focus, straddling, underwear, white_shirt