"The Embassy of Elchea was a huge building that stood near the border on the outskirts of Elchea. This was Elchea, the Eastern Union embassy. Inside was one of the many but most important bureaucrats which was the old Elchea Eastern Union embassy foreign Werebeast ambassador" - Hatsuse Ino
The Embassy of Elchea was the former castle of Imanity before the former king of Imanity lost it in a game with the werebeasts. After it was converted into an embassy, the castle of Elchea and the Embassy of Elchea went into a massive construction war against each other over which would look more prestigious. Due to the merging of the Eastern Federation and Elchea into the Elchea Federation in Volume 3, it is uncertain as to what has become of it.