Mikado City

Mikado City ( Mikado-shi) is the main location in the World Trigger Universe. It currently has 280,000 inhabitants and is where Border Headquarters is located.

History
About four and a half years before the start of the series a gate to another world opened and Neighbors appeared in the city and started attacking. A mysterious group named Border appeared and repelled the neighbors. In 2 days East Mikado was destroyed over 1200 people died and more than 400 people are still missing. Afterward, Border built their base in the city to protect it from Neighbors.