Little Sorcerer, Divine Doctor - Chapter 21 - 20: Unleashing Power, Combat Skills Swallowing Sky

The protagonist travels through Shu Mountain and becomes a demonic dragon guarding the heavenly book in Dinghu Peak.

Kazura was selected as the winner on a lottery that he bought on a whim and received ¥4,000,000,000 (4 billion yen).

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

Stumbling upon a game, I found myself immersed in a script brimming with excitement: superpowers, oddities, curious artifacts, and demons...Here, one can not only delight in the pleasure of grinding but also touch an infinite degree of freedom and even experience the curious thrill of being carried away by monsters!Let’s not talk too much, happiness, just happiness is all that matters!