Earl Nueast!
He is one of the nobles whose household is located in the capital of the dark green nature kingdom. His race was that of a wolf who was feeding on the plants! The plant wolf! This race has changed after few generations living in the dark green kingdom.
Naturally, they were feeding on the special plants out from here while serving the royalty! The royal family was very happy with their services as the plant wolf can also find a unique plants in their territories with their sharp senses.
Overall, the dark nature is the main weapon and cultivation of the royalty and their people. However, the nature is quite surprising one, giving a birth to completely opposite flowers, plants and so on within their capital and outskirts.
It's very hard for these to grow in the dark nature, however.