natsumi akira, akiyama mio, hirasawa yui, kotobuki tsumugi, tainaka ritsu, k-on!, > <, 00s, 4girls, = =, aged down, black hair, blonde hair, blunt bangs, brown hair, castanets, chibi, child, closed eyes, guitar, hair bobbles, hair ornament, hairband, hime cut, ho-kago tea time, instrument, keyboard, keyboard (instrument), kindergarten, kindergarten uniform, long hair, multiple girls, pun, school uniform, short hair, tambourine, tears, un tan