Fate Destiny Alien War

After an unknown number of secret Holy Grail Wars, the source of the earth's magic collapsed, and when the existence of humanity was about to be wiped out, the last Master who won the war made his last wish to the Holy Grail. "Please... Never appear in the world again", this is his plea to the omnipotent wish machine, and also his despair for human war. And the Holy Grail that obeyed his wish appeared in another world. In this world, a new war has begun around the Holy Grail... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.