You have read 'Introduction to Occult Science', subject knowledge points +100! You have read 'Basic Explanation of Potions', and you can understand the howling of the Potion Banshee without a teacher! You have read 'The Theory of Magic Kinetic Energy', and successfully created I bought a water-fueled ghost locomotive! You start to meditate, and you have been meditating for ten minutes. This is a world where learning will lose SAN value, where spiritual energy is revived, old gods are peeping, and demons are rampant. This place is full of all kinds of fantasy machines Creation, there are powerful warriors who can level mountains and have indescribable extraordinary power. You don't hesitate, you open the occult textbook, and shout in your heart: System, give me another 10,000 volumes of questions! PS1: Easy text PS2 : Too many elements, the dog's head saves life