Afilmadaptationofaplaymadebyahighschooldramaclub，directedbyYamashitaNobuhiroofLindaLindaLinda(2006).It’sessentiallyacoming-of-agefilmaboutteenagersmadebyteenagers.Duringsummervacation，atahighschool，thePEteachermakesfemalestudentswhoskippedhisclasscleantheoutdoorswimmingpool.Thedrainedpoolisfullofsandblowninfromanearbybaseballfield，andthetaskofscoopingupthesandandputtingitinbucketsseemsmeaningless.Chizuru，whousedtobeunbeatableintheswimclubinmiddleschoolevenagainstboys，practicesimaginaryswimminginthesand-filledpool，whileKokoro，whoisseriousaboutcultivatingherfemininecharmbydiligentlyapplyingmakeup，doesn’tcareaboutcleaning.Withtheirownstories，Miku，whodiligentlypracticesdancemovestypicallyperformedbymen，andYui，whowastheswimclubcaptainlastyear，andtheothergirlsmeetandconverseonthepoolfloorunderthesummersun，whereunexpectedconflictsariseandresolveinunexpectedways.Throughafewhoursinadayatahighschool，thefilminterestinglyshowsthesensibilitiesanddesires，dreamsandhopes，angerandfrustrationofthattime.