oldsickkim, hoshino ichika (project sekai), project sekai, absurdres, highres, 1girl, ass, black hair, black socks, blush, from side, grey eyes, grey serafuku, grey shirt, grey skirt, kneehighs, knees up, long hair, long sleeves, looking at viewer, midriff peek, miniskirt, neckerchief, parted lips, pleated skirt, red neckerchief, sailor collar, school uniform, serafuku, shirt, shirt overhang, simple background, sitting, skindentation, skirt, socks, solo, sweat, swept bangs, thighs, white background, white sailor collar