Geas System

A powerful contract with time, that is the power of the Geas God. But with an absolute power comes absolute curse. The Geas God had imprisoned all the monsters in a dimension. But after thousands of years, the monsters will gain their freedom. But there is the curse and blessing of the Geas God. Whoever gets exterminated first, humans or monsters will be the next set of souls who will be trapped. But humans will be granted by the Geas a system that can help them fight back. However, an established thought of rules will be the basis of the system. And it randomly picked the rule of a certain mobile game.