The Eastern Union (東部連合, Tōbu rengō) or Eastern Federation was a nation where the Werebeasts resided. It was Disboard's third largest country, and consisted mostly of the islands in the Southeastern seas. After Sora's games with the werebeasts, the Eastern Federation was absorbed by Elchea. However, it was allowed to become a self ruling territory under Elchea. [1]

  1. Volume 1: Chapter 2, Part 3