hideki nagamachi, the idolmaster cinderella girls, the idolmaster series, seiza, sitting, japanese clothes, kimono, long hair, multiple girls, black hair, sash, obi, 6+girls, hands on lap, stage, bangs, long sleeves, indoors, flower, blue hair, twintails, brown hair, blunt bangs, smile, plant, hair ornament, closed eyes, wide sleeves