It turns out that the water of the Wangchuan River can purify unclean things, but it has no effect on gods. But the Wangchuan River was originally the source of Meng Po Soup, so Lishu Xingjun was not in danger of his life, but because of the purifying power of the Wangchuan River, his brain was cleansed.
Now, to put it nicely, Lord Lishu Xing has lost his memory, but to put it bluntly, he is an idiot god.
Conception: