matsuo yukihiro, aoi sena, 5pb., chaos;head, science adventure, plaid, game cg, highres, 00s, 1girl, barefoot, blue hair, blurry, depth of field, feet, female focus, foot focus, foreshortening, from below, kneehighs, long hair, looking at viewer, naughty face, necktie, night, open mouth, outdoors, panties, school uniform, serafuku, single sock, skirt, sock pull, socks, soles, solo, toes, underwear, very long hair