The god of war Ming Ye fell into the Mo River due to a sneak attack by the devil during the war between gods and demons. He was rescued by Sang Jiu, a princess of the Beng tribe who admired him, and the two got married. Due to a combination of circumstances and many misunderstandings, Sang Jiu, the little princess of the Beng tribe, passed away. Ming Ye was so sad that she wrote a letter to remember the time when the two met and knew each other.
Purpose: People should communicate with each other, understand each other, and tolerate each other.