A Man in a Strange World Has Just Become the Ruler of the Old Days.

I traveled to the terrifying world of Cthulhu mixed with Classics of Mountains and Seas, and awakened the most useless sequence [Compilation]. Until I accidentally put "Necronomicon" and "Book of Mountains and Seas" together - the hidden sequence [Infinite] suddenly activated. When the most dangerous half-ghost deity in the school strangled my neck, I heard his trembling voice: "Why do you have the aura of the Old Ones on your body?"