Fantasy about Disney's related background story?

Emerald city-a charming city, you may never have heard of her name, but that doesn't affect her existence.

Numerous trees of different shapes grow in the colorful Emerald City. They are tall, magnificent, lush and thriving, just as strange and charming as the scenery you see in your dream. There is everything in the dazzling market, which makes everyone passing by the city linger.

All the known and unknown things about emerald city began with a man named Austin, who was an exorcist and a respected and powerful saint. The Exorcist planted a huge tree of life in a lifetime in an era you can't imagine. It embodies Austin's supreme power, absorbs all the just forces of life and death, and has the power of creation.

Austin's subjects are a group of smart, lively, beautiful and charming elves, who are good at singing and dancing, cheerful and talkative, gentle and hospitable. All kinds of unique and ingenious buildings and impressive urban layout in the city are the crystallization of their wisdom.

The tree of life maintains the existence of all things: it enables plants to continuously absorb nutrients from the earth and live endlessly; It allows the elves to acquire powerful magic and reproduce from generation to generation. This organic and wonderful order has been running normally for tens of thousands of years, but after The Exorcist gradually grew old, some unknown dark forces invaded emerald city at the instigation of the inferno. They are changeable, insidious and treacherous, and use all means to "pollute" the land and elves in emerald city.

Gradually, due to the continuous "pollution", the dark forces have taken away the magic source of the tree of life-the star of life, and brought them to the parallel world around the mainland. The dark forces tried to use the Star of Life to enhance their own strength and realize their plot to control all parallel worlds.

Due to the continuous loss of the star of life, the creative magic of the tree of life is getting weaker and weaker, which leads to the deterioration of the earth nutrients absorbed by plants and the loss of the magic supply of the tree of life. The elves were also alarmed, and emerald city was in danger. ...

Facing the increasingly rampant dark forces encouraged by the devil, in order to relieve the crisis of the Tree of Life and maintain the existence of emerald city,

Austin exorcists selected Mickey Mouse, Donald Duck and Goofy, three gifted disciples, in emerald city, to teach them twelve series of fighting skills to fight against the dark forces. The disciples of Austin exorcist founded twelve professions and formed the emerald city Army, collectively known as the Guardian. Most of these guardians come from the three best races: elves, blood clan and human.

Austin also trained a group of outstanding astronauts. You can enter various parallel worlds around emerald city through teleports, assist the righteous forces to experience a series of unprecedented adventures, recapture the star of life controlled by the dark forces, destroy the plot of the demon clan, restore the magic of the Tree of Life, and reproduce the glory of emerald city.