inoue sora, kisaragi chihaya, idolmaster, idolmaster (classic), commentary request, highres, 1girl, arm support, bare arms, bare legs, bare shoulders, barefoot, black dress, blue hair, blush, breasts, brown eyes, cleavage, collarbone, convenient leg, crossed legs, dress, feet, full body, hair between eyes, hands on feet, jewelry, knees up, legs, long hair, looking at viewer, nightgown, open mouth, ring, signature, simple background, sitting, sleeveless, sleeveless dress, smile, solo, strap slip, toes, white background