Once upon a time, God created the world where have a lot of monsters. The human have to live in Gem city. At there, Monsters can not attack them. Until one day, God accept the human can challenge themselves by defeat the monsters but they have to use the Gem Chess to do that.

You are a person who live in Gem city. To become the hero of Gem city, you have to solve all problems at there. First, you must save a girl from the evil dragon and take her back the city. Let do it now...