1girl, blush, bra, breasts, cleavage, closed_mouth, collarbone, curtain_grab, curtains, dot_nose, grey_hair, hanasaki_rine, hand_on_own_chin, idolmaster, idolmaster_shiny_colors, long_hair, looking_at_viewer, medium_breasts, navel, panties, purple_bra, purple_eyes, purple_panties, sidelocks, smile, solo, sparkle, standing, twintails, underwear, underwear_only, yukoku_kiriko