1girl, blush, breasts, brown_eyes, brown_hair, cleavage, hand_on_own_chest, hitotsuki_nanoka, idolmaster, idolmaster_shiny_colors, kuwayama_chiyuki, large_breasts, long_hair, looking_at_viewer, open_mouth, see-through, see-through_cleavage, skirt, smile, solo, twintails