During a camping trip in late spring and early summer, three ordinary high school students - Ruoye, Lijin, and Shengqiu - met a mysterious man named Jincheng. He told the three of them that the seemingly ordinary river in front of them was actually the first entrance to the River Palace, and the River Palace was the place where they lived in their previous lives. This time Jincheng came among them to complete a mission together. So the three began a mysterious journey. However, things were complicated and confusing, and after uncovering the first layer of mystery, they encountered more difficult challenges. Yan Yuan, the patron saint of the River Palace, told them that if they want to change their destiny, they must go to the upper realm of the River Palace, that is, the divine realm, to find the legendary Ice Lotus Lake. So the four began a more difficult and dangerous journey. The mysterious fog finally gradually dispersed...