hyocorou, kousaka kirino, ore no imouto ga konna ni kawaii wake ga nai, 1girl, blazer, blush, buttons, chalkboard, embarrassed, female focus, flat chest, frown, greyscale, groin, hair ornament, hairclip, hands on own hips, indoors, jacket, kneehighs, long hair, looking at viewer, lowleg, lowleg panties, monochrome, necktie, no pants, panties, parted bangs, ribbon, school uniform, serafuku, shadow, socks, solo, standing, swept bangs, underwear, very long hair, wavy hair