1boy, 1girl, ass, backstage, bare_legs, barefoot, black_jacket, black_suit, closed_eyes, formal, grace16, hetero, idolmaster, idolmaster_cinderella_girls, jacket, knees_up, leaning_back, looking_at_another, loose_neck_ribbon, makeup, parted_lips, producer_(idolmaster), producer_(idolmaster_cinderella_girls_anime), shibuya_rin, suit, thigh_strap, thighs