Great Forest:

The Great Forest is an unusual Kingdom. The entire landmass is one giant forest - which is overseen by one type of race. Well, you could argue two technically. The Ents and the Venus are a plant type race that live in the Forest and protected by the Earth Spirits - Gnome and Terra. They are their patron spirits who they worship. At one point, the Ents and Venus were at war with each other and fought over the forest, but eventually their two leaders Leaf and Cassava came together and managed to unite their people.

This was a dangerous move, but they did so anyway - dangerous because Venus if they mate with someone have a high chance to kill their mate if the two opt to breed. The Ent side of the species can decide to have 4 children period with whoever - the same person, or 4 different people, but the Venus are a more dangeous type of plant person; they can have as many children as they want, but each time you risk it when you agree to have their kid. It also a reason their number is lower than the Ents.

Despite this, Leaf and Cassava had children together and Leafy became the new leader of the tribe. She also became close to Terra, cementing their connection to the Earth Spirit.

Currently, due to this connection, the Suisen Empire has made it so that the tribe has had protection shields so no one will attack them and it keeps the monsters that roam the forest from entering the tribe's city. And this is good, because the forest has become a breeding ground for the monsters lately, making it dangerous to travel to deep into them.