Rule 34 Dev - 10s 1girl artist_request breasts brown_hair choker cleavage dress female_focus fingerless_gloves flower gloves idolmaster idolmaster_cinderella_girls idolmaster_cinderella_girls_starlight_stage instrument lipstick long_hair looking_at_viewer makeup matsuyama_kumiko microphone music official_art open_mouth piano playing_instrument singing sitting smile solo|7018866855

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