Create an anime-style setting for a planet where the species that inhabits it is

Create an anime-style setting for a planet where the species that inhabits it is a species of humans that developed a symbiotic relationship with an alien life form or genetically modified microorganisms., which gives them additional capabilities such as better immunity or enhanced sensory abilities. Extraterrestrial living in the place, a description of the anatomy of each species and the animals and vegetation of the place. That species have biological logic. And they are based on an evolutionary theory.