inumori sayaka, akiyama mio, hirasawa yui, kotobuki tsumugi, tainaka ritsu, k-on!, 00s, 4girls, bikini, bikini top only, black eyes, black hair, blonde hair, blue eyes, blush, brown eyes, brown hair, column lineup, comparison, denim, denim shorts, drum, drum set, guitar, ho-kago tea time, instrument, keyboard, keyboard (instrument), long hair, looking up, multiple girls, one eye closed, sandals, short hair, shorts, swimsuit, synthesizer, tomboy, wink