umekichi, francesca lucchini, strike witches, world witches series, bad id, bad pixiv id, 00s, 1girl, animal ears, barefoot, black hair, cat ears, cat tail, collarbone, feet, female focus, flat chest, hair ornament, navel, open clothes, open mouth, open shirt, panties, shiny clothes, shiny skin, shirt, simple background, sitting, smile, solo, solo focus, striped clothes, striped panties, tail, tan, tongue, twintails, underwear, white background, white shirt