Add the project file "Anime Nature Pro" to your asset files path folder

Then you can just drag and drop them from your asset library to your scenes and use the assets right away.

You can also watch a tutorial here: 

https://youtu.be/S1k8N3Loum4

On the Render Settings for Eevee you have to have for the Shadow settings

For correct lighting use the Anime Sun that comes in the asset library

For Blender 4.2 put the sun intensity on 1. still works great.