k-on!!, k-on series, kotobuki tsumugi, sakuragaoka high school uniform, multiple girls, hirasawa yui, 3girls, tainaka ritsu, school uniform, brown hair, blonde hair, short hair, long hair, winter uniform, indoors, skirt, hair ornament, jacket, table, pantyhose, remote control, couch, socks, hairclip, hairband, blazer, sitting, open mouth, controller, parody, thighhighs, closed eyes, akiyama mio, television