A male otaku in the city is killed for some unknown reason. A jade pendant with supreme power brings him to the original place of all things. There, he gains the foundation of power and realizes that Gensokyo, the place he had yearned for when he was an otaku, is real.

Magicians, the Twenty-seven Dead Apostle Ancestors, and anyone else who stands in his way will become the stepping-stone on his path to the Land of Illusions and the supreme throne of heaven.