Ask for a nursery rhyme, which contains "The White Snake of the Millennium descended to Xu Xian ..."

When the ashes were gone, Ouyang Feng, Nangai Qigong and Huashan were more heroic when discussing swords. Finally, Guo Jing married Huang Rong.

Haha, I have a good memory, right? Almost 20 years.

The following is a search

The Millennium Snake Demon White Snake came down to repay Xu Xianen. On the way, she met Lao Fahai, a grandmother who had been imprisoned in Leifeng Tower for twenty years. Xiaoqing worked hard for ten years to save her sister Bai Niangzi. Xu Shilin, the son of White Snake, fell in love with Hu Meiniang Mei Niang next door. She is a jade rabbit. Lian Bi, Lian Bi, don't be angry. I'll give you Shilin. I'll give it to you.

Lady white snake, a thousand-year-old snake demon, came down to the world to report that Xu Xianen met Laofahai halfway, and the Leifeng Pagoda was closed for twenty years. Thanks to Xiaoqing's magic, lady white snake saved her sister.