Arius is an ancient Esk, dating back from the Cretaceous period. They have seen a lot, maybe too much, but they try to distantiate themself from bad memories and go on.

They like to wander the wastelands, and usually spend their days peacefully.

Arius might not be the most social Esk, and is not especially eager to transform,
but if they see a creature in need, they don't mind to help out.
Arius prefers to be surprisingly familiar with the Esk they created,
because they feel like they have a certain bond with the Esk.
The Esk they created are the only Esk Arius is hesitant to push away.