高二的暑假，心和未來回到學校參加游泳補課，沒想到出現在眼前的，卻是一滴水也沒有，底部堆滿風沙的泳池。為了不被當掉，二人雖不情願，仍接受了體育老師提出的條件，頂著豔陽開始泳池的清掃工作。隨著明明沒有水，還是堅持練習的游泳部員及高三學姐的加入，四名女孩談論起關於校園生活、戀愛、時尚等話題，而對於未來的期待和迷惘，也夾雜著各種情緒逐一湧現。
以《琳達！琳達！》受到矚目，擅長拍攝青春群像的日本名導山下敦弘，繼《去唱卡拉OK吧！》後，再度推出以成長煩惱為題的作品。改編自德島市立高中演劇部獲獎同名舞臺劇，高中生劇作家中田夢花以自身角度，透過大量對白呈現同齡人之間毫無保留、句句正中心懷的暢所欲言。在輕鬆爽快的藍天下，堆砌屬於當代的青春物語；於水深零米的泳池裡，展開一場酣暢淋漓的思緒暢游
It is summer vacation, but high schoolers Kokoro and Miku have been instructed by their PE teacher, Yamamoto, to clean the swimming pool. The pool has been drained of water and it is covered with sand from the baseball team's field next door. Thus, under the blazing sun, they are meant to sweep the sand but distractions abound as Chizuru and Yui join them and stray in their path. Together, they initially discuss school life, love and makeup, but it isn't long before their worries begin to overflow and their thoughts intersect…
高二的暑假，心和未來回到學校參加游泳補課，沒想到出現在眼前的，卻是一滴水也沒有，底部堆滿風沙的泳池。為了不被當掉，二人雖不情願，仍接受了體育老師提出的條件，頂著豔陽開始泳池的清掃工作。隨著明明沒有水，還是堅持練習的游泳部員及高三學姐的加入，四名女孩談論起關於校園生活、戀愛、時尚等話題，而對於未來的期待和迷惘，也夾雜著各種情緒逐一湧現。
以《琳達！琳達！》受到矚目，擅長拍攝青春群像的日本名導山下敦弘，繼《去唱卡拉OK吧！》後，再度推出以成長煩惱為題的作品。改編自德島市立高中演劇部獲獎同名舞臺劇，高中生劇作家中田夢花以自身角度，透過大量對白呈現同齡人之間毫無保留、句句正中心懷的暢所欲言。在輕鬆爽快的藍天下，堆砌屬於當代的青春物語；於水深零米的泳池裡，展開一場酣暢淋漓的思緒暢游
It is summer vacation, but high schoolers Kokoro and Miku have been instructed by their PE teacher, Yamamoto, to clean the swimming pool. The pool has been drained of water and it is covered with sand from the baseball team's field next door. Thus, under the blazing sun, they are meant to sweep the sand but distractions abound as Chizuru and Yui join them and stray in their path. Together, they initially discuss school life, love and makeup, but it isn't long before their worries begin to overflow and their thoughts intersect…