3girls, alternate_costume, black_hair, brown_hair, collarbone, expressionless, formal, honda_mio, idolmaster, idolmaster_cinderella_girls, light_smile, looking_afar, looking_at_viewer, multiple_girls, new_generations_(idolmaster), no_shirt, oversized_clothes, shibuya_rin, shimamura_uzuki, shuna_(rain_ball47), simple_background, suit, upper_body