Global Cataclysm: I Became the World Tree.

A ferocious bird with a wingspan of one hundred meters flew past from high altitude.
The blood-red beasts leaped and darted between the tall buildings, searching for their prey.
The road below was trampled into huge pits by a terrifying creature surrounded by thunder.
Helpless humans are shivering in the ruins of the city.
Outside the city, a giant tree that blocked out the sun opened its eyes.
"This is the city I'm protecting. Leave, or you'll die!"
In an instant, all the beasts surrendered.
PS: Exotic beast flow + leader flow!
In the early stage, the focus is on conquering mutant animals and building your own power.
In the middle and late stages, the protagonist can transform into a human.

Novel Keywords: Global Cataclysm: I Became the World Tree (no pop-up ads), Global Cataclysm: I Became the World Tree (full text download), Global Cataclysm: I Became the World Tree (latest chapter reading)