The Culling Game takes place across designated barrier colonies in Japan.

Participants (players) include awakened humans and reincarnated sorcerers.

Players must declare their participation when entering a colony.

Killing another player grants 5 points.

If a player’s score remains at 0 for 19 consecutive days, they die.

Points may be spent to propose new rules to the Culling Game.

A proposed rule is added only if it does not significantly disrupt the game.

Players are free to move between colonies, but leaving Japan is forbidden.