Who is the Mid-Autumn Festival related to?

Chang 'e, the Mid-Autumn Festival is about enjoying the moon, so it is related to Chang 'e.

Mid-Autumn Festival, also known as Moon Festival, Moonlight Birthday, Moon Festival, Autumn Festival, Mid-Autumn Festival, Moon Festival, Moon Festival and Reunion Festival, is a traditional folk festival in China. The Mid-Autumn Festival originated from the worship of celestial phenomena and evolved from the worship of the autumn moon in ancient times. Since ancient times, Mid-Autumn Festival has had folk customs such as offering sacrifices to the moon, enjoying the moon, eating moon cakes, playing with lanterns, enjoying osmanthus and drinking osmanthus wine. It has been circulating for a long time.

Introduction to Chang 'e:

Chang 'e is a fairy in ancient China mythology. The myth of "the Goddess Chang'e flying to the moon Goddess" originated from the ancient people's worship of stars, and the story of Chang 'e first appeared in "Returning to Tibet". Later, the story was further developed by the people and evolved into several story versions.

The fairy tale of "the Goddess Chang'e flying to the moon" in the book Huai Nan Zi in the Western Han Dynasty is because she ate the elixir that her husband Yi asked the Queen Mother of the West, flew into the Moon Palace and became a toad.