1girl, ahoge, blue buruma, blush, brown eyes, buruma, closed mouth, clothes lift, eggman (pixiv28975023), embarrassed, grey hair, gym uniform, indian style, kneehighs, legs, lifted by self, long hair, male-female symbol, navel, onii-chan wa oshimai!, oyama mahiro, revision, scratching stomach, shirt, shirt lift, short sleeves, sitting, socks, solo, thighs, white shirt, white socks