k-on!!, k-on series, smears, multiple girls, tainaka ritsu, nakano azusa, hirasawa yui, kotobuki tsumugi, sakuragaoka high school uniform, school uniform, akiyama mio, 5girls, ground vehicle, motor vehicle, brown hair, long hair, black hair, blonde hair, guitar case, pantyhose, short hair, twintails, scarf, bag, instrument case, hairband, parody