I Eat the Magic Scroll and Learnt Everything!

“Land of Varan” is a world that had only magic. There was one occupation that everyone in this world yearned for — A Mage.
Mages could command fire, steer tempests, and control lightning, they could do all kinds of incredible things.
Rolin didn’t expect that he would transmigrate from the Earth into a world like this, and become a fallen nobleman. Fortunately, he was lucky enough to awaken the [Legendary Extraction] System when he transmigrated.
He ate his textbook and immediately mastered all of the magical knowledge inside it.
He ate a magic scepter and learnt to unleash magic directly from his hands.
He ate a magic crystal and obtained the ability to automatically store mana.
He ate ice cubes, immediately, his ice elemental magic was exponentially amplified……
Afterward, Rolin was able to extract the essence of any magic-related items by eating it, increasing the power of his own magic.
With his hysterical gluttony, Rolin quickly became the most powerful god among the mages of this world.