1girl, arms_behind_back, bad_pixiv_id, bare_shoulders, blush, bra, breasts, cleavage, collarbone, cowboy_shot, double_bun, hair_bun, idolmaster, idolmaster_shiny_colors, landel, looking_back, medium_breasts, navel, open_mouth, panties, pink_bra, pink_panties, red_hair, short_hair, short_twintails, simple_background, solo, sonoda_chiyoko, stomach, twintails, underwear, underwear_only, white_background