nita (funka funka), nita (pixiv1465090), hatsune miku, vocaloid, bad id, bad pixiv id, 1girl, aqua eyes, aqua hair, arched back, contortion, detached sleeves, female focus, fish, flexible, full body, legs over head, long hair, lying, necktie, on stomach, panties, pantyshot, plantar flexion, simple background, skirt, solo, stretching, striped clothes, striped panties, thighhighs, twintails, underwear, upskirt, very long hair, yoga, zettai ryouiki