hogeroh, otonashi kotori, idolmaster, idolmaster (classic), 00s, 1girl, aqua hair, areola slip, band uniform, blush, breasts, cleavage, clothes lift, embarrassed, female focus, hairband, headset, huge breasts, leaning forward, long hair, microphone, mole, mole under mouth, no bra, open clothes, open mouth, open shirt, panties, pantyshot, pleated skirt, red eyes, rope, shirt, simple background, skirt, skirt lift, solo, sweat, thighs, underwear, upskirt, white panties