I Have a Divine Shadow Atlas

Li Yu discovered a blank book called the Shadow Deity Atlas among his master's belongings. He had intended to use it as nothing more than a decorative ornament, but discovered that it could take him between the ancient past and the present. He could slay demons and monsters and record them within its pages, exchanging them for divine abilities and magical treasures. Year after year, the book grew thicker. Until one day, all the monsters had been wiped out, and there was nothing left in the world to record. He turned to the final page. On the yellowed blank page, what slowly emerged was not a hideous demon, but a compassionate Buddha seated upon a lotus platform. It turned out that the Shadow Deity Atlas recorded more than just mortals, demons, and monsters.