Firstborn Brotherhood

The Firstborn Brotherhood is a secret organization of humanoid animals from the first three batches.

The goal of the organization is to have revenge against the Founding Ten and their associates.

The Firstborn Brotherhood is centered around New Kobe and the State of Hojo.

Episode Zero
Amber Wilson investigates the Brotherhood in a quest to help her new neighbor Satoru Shibaishi. She ends up discovering more than she should have. Brotherhoods members chase and attack her and she has to escape from New Kobe to Boidia City.