The Rational Hunter of the Cthulhu World

Dressed as a librarian from another world, Levi discovers that the magic books here can drive people crazy. Fortunately, he has a "logical anchor" - he can stay awake and take notes during the madness. When the cultists carefully performed the horrific rituals, he calculated the energy efficiency; when the ancient gods whispered to make people collapse, he carefully recorded the grammatical errors. "According to observation, the evil god may have obsessive-compulsive disorder, and the ritual pattern will be ineffective if it is drawn 0.5 Centimeters off." From then on, this rationalist who always liked to complain began to use scientific methods to hunt indescribable things. The world is slipping into madness, and his weapons are: reason, records, and just the right amount of dry humor.