horiguchi yukiko, akiyama mio, hirasawa yui, kotobuki tsumugi, tainaka ritsu, k-on!, absurdres, highres, official art, scan, 00s, 4girls, beach, bikini, black eyes, black hair, blindfold, blonde hair, blue eyes, brown eyes, brown hair, day, food, fruit, goggles, grin, ho-kago tea time, innertube, long hair, multiple girls, one eye closed, outdoors, ponytail, short hair, smile, striped bikini, striped clothes, suikawari, swim ring, swimsuit, text focus, watermelon, wink