Chang 'e's ending is very strange.

The ending of the Goddess Chang'e flying to the moon's story in Han Dynasty is very strange. People in the Han Dynasty believed that there were jade rabbits and toads in the moon. Jade rabbit doesn't know the origin, and it is said that Chang 'e later became a toad. The story of Chang 'e taking the elixir to the moon was revealed at the latest in the divination book "Returning to Tibet" at the end of the Warring States Period, and it was not widely known until the Han Dynasty. The story of the Goddess Chang'e flying to the moon in the Goddess Chang'e flying to the moon's Huainanzi written by Liu An, the king of Huainan in the Western Han Dynasty, and Lingxian written by Zhang Heng, an astronomer in the Eastern Han Dynasty, has always had a good beginning and end. Lingxian also mentioned that after Chang 'e stole the elixir of Hou Yi, he went to a fortune teller named Huang for good or ill luck. The fortune teller made a divination and told her it was auspicious, but it didn't hurt. He also predicted that if you go to the west, you may encounter dark and cloudy weather at the beginning, so don't be afraid, and future generations will be prosperous. Later, Chang 'e, who flew to the moon, became a toad.

Maybe it's because the ending of Chang 'e changing into a toad is too perverse and unreasonable. When the Goddess Chang'e flying to the moon's story spread, it lost its ugly tail and became a pure story of joys and sorrows.