Zisu promised his grandma that he would fulfill her wish, and at the same time asked her grandma to bless him and A-Nian. He loved A-Nian, and after marrying A-Nian, he would become Sushui's man, and he would fulfill his promise.
When her grandmother passed away, Sushui carried out a water burial for her according to tradition. When Zisu said goodbye to her grandmother, she also realized that the coming and going of life is a part of nature. We should follow nature, look forward to the arrival of life, and also say goodbye to the departure of life calmly, because,Everyone will eventually return to the embrace of nature and turn into soil, rivers, and stars, just like the ancient legend.