akiyama mio, hirasawa yui, kotobuki tsumugi, tainaka ritsu, k-on!, absurdres, detexted, highres, non-web source, third-party edit, 00s, 4girls, arms up, beach mat, bikini, black hair, blanket, blonde hair, blue eyes, blush, brown eyes, brown hair, closed eyes, day, flat chest, goggles, grin, ho-kago tea time, long hair, multiple girls, one eye closed, short hair, smile, striped bikini, striped clothes, swimsuit, towel, wink