The chief of the Khmu group of the Tsou people had two kindhearted daughters who sang beautifully. The older sister was called “Ena”, and the younger sister was called “Eva”. The sisters loved to sing in the woods.

One day, the fierce son of the chief of the Wumu group, Wugu, heard the sisters singing in the forest as he was heading home after a successful hunt.“What are you singing! You sound awful! Go home!”Ena replied angrily,“Please leave this place, and do not disturb us.”Wugu became enraged and said,“I am not only a skilled hunter, I am also a fierce warrior. How dare you raise your voice at me? I will let the both of you taste my wrath!”Saying this, he went home with his catch.

After a few days, the Wugu group sent someone to the Khmu group and told them,“Our harvests are dwindling, and our prey has become scarce. It must be because the Mountain God is angry, and must be appeased with an offering of 100 human heads. Your group is to contribute 50 human heads for the human sacrifice, or the Mountain God will burn your houses, and make all villagers sick.”Everyone felt scared upon hearing the news, but no one knew what to do. Ena knew that this had to be Wugu’s evil plot, but she did not know what to do. So, the sisters ran into the forest, and prayed to the God of the Heavens,“Oh, God of the Heavens! The Wumu group is plotting to sacrifice to the Mountain God to kill our people. Please protect our people from harm. We are willing to sacrifice our lives to protect our people.”

The God of the Heavens was moved by their plea, and transformed their tears into two conjoined lakes with deep waters. The sisters stood at the center of the lakes. When Wugu led his warriors to attack the Khmu group, and saw the lakes blocking their way, he said aloud,“Do not think that these lakes can stop us.”Ena replied,“How dare you take the lives of our innocent villagers in the name of the Mountain God! The God of the Heavens will not condone such a heinous act!”Suddenly, lightning streaked across the sky followed by a torrential downpour. The lakes’ water level rose, and a massive hundred-foot wave came down upon the warriors of the Wumu group, washing them away. The wave also took the lives of Ena and Eva. In honor and remembrance of their sacrifice, the villagers named the lakes “The Sister Lakes”.

　　鄒族克木社長老有兩個心地善良、唱歌又好聽的女兒，姐姐叫「伊娜」，妹妹叫「伊娃」，姐妹倆最喜歡在森林裡唱歌。
　　有一天，烏木社長老凶悍的兒子「烏古」，從山上打完獵看到姊妹倆在唱歌便說：「唱什麼歌啊！一點都不好聽，快滾回去吧！」伊娜聽完生氣地說：「請你離開這裡，不要來打擾我們。」烏古也不客氣的說：「我不但是個打獵高手，還是個勇猛的戰士，竟然敢對我大呼小叫，我要讓妳們嚐嚐我的厲害。」說完後就帶著獵物回家。
　　過了幾天後，烏古派人對克木社的人說：「最近收成不好，獵物又少，一定是山神生氣了，所以要用100個人頭來祭拜，你們要獻出50個人頭作為祭品，否則山神會將房子燒光，還會使全社的人生病。」大家聽了雖然很害怕，卻又想不出辦法。伊娜知道這一定是烏古想出來的壞主意，但是又不知道該如何是好，姐妹倆就跑到森林，祈求天神說：「天神啊！烏木社的人要利用祭山神儀式，來殺害我們，請您保護社民免於災害，我們願意犧牲生命來交換。」
　　天神受到感動，便將兩人流出的淚水，化為兩個相連的深潭，姐妹倆站在水潭裡，烏古帶領戰士準備攻打克木社時，發現深潭擋住去路，就對大家說：「不要以為這樣就可以阻擋我們。」伊娜接著說：「你利用山神生氣的騙局，來傷害我們善良的社民，天神不會原諒你們的。」忽然，天空電光閃耀，雨水傾盆似的狂下，水潭的水升高，掀起百尺高的巨浪打退烏木社的戰士，也淹沒了伊娜和伊娃，後來大家為了紀念她們，就將這兩座潭水取名為「姐妹潭」。