Culling Game/Colonies

The Culling Game Colonies are ten large areas of Japan that were isolated by massive barriers on November 1, 2018. The colonies host the Culling Game competition and their geography forms a line down Japan. They serve as the primary settings for the Culling Game Arc.

Description
The ten colonies across Japan are sealed off by barriers that connect to one another and form a line directly down the archipelago. Each barrier is named after the area they cover (e.g. the Sendai Colony) and they are meant to serve as battlegrounds for players to freely fight and kill one another to score points. The purpose of this setup is to send Japanese people to "the other side" once the Culling Game has been completed. This does not include Hokkaido in the north because of the Jujutsu Society and its status as a vast sacred zone.

Non-players inside the barriers at the start of the Culling Game were given one chance to exit. Players who begin inside the barriers were not given that same choice and were forced to remain inside. Any non-player who enters a barrier is greeted by a Kogane and asked if they would like to participate in the deadly competition. If they agree, they become a player and are granted permission to enter the barrier. Upon entry, players are randomly transported to one of nine predetermined locations within the colony.

There was no initial rule about entering or exiting barriers at the start of the event. Players were given the objective to try and exit the barriers as a way to properly stimulate competition between them. In order for the barriers to be strong enough to confine all the players, they're reinforced by a vow relying on the premise that players participate in the game of their own free will.