John Rei a college student who have been forcefully transported together with all of the teenagers of his world by an unknown mask in a fantasy world to survive a cruel quest in crossing the world called the ‘Edge of the Beginning’. This quest includes their lives at stake as they may be killed anytime and anywhere for the wolrd is unknownt to them. Thus, they have been given a chance to choose any weapon by the featureless mask. Having been chosen by a necklace who can actually talk boasting that it is a weapon of guardian division who Rei really don’t know if it is true, is forced to wear it. Now that they are tied by destiny, we will be accompanying them in an adventure to seek the true answer why are they forced in that world. For he, do not believe that they went there just because the world they live is on the verge of destruction.