sian, megurine luka, vocaloid, bad id, bad pixiv id, highres, 1girl, :d, areola slip, bare shoulders, belt, black thighhighs, blue eyes, blush, breasts, crop top, detached sleeves, female focus, green eyes, headset, huge breasts, long hair, midriff, naughty face, navel, no bra, open clothes, open mouth, open shirt, pink hair, shirt, sitting, skirt, smile, solo, spread legs, thighhighs, very long hair, zettai ryouiki