The Man Is the King: Preventing Li Bai from Becoming the Devil

After traveling through the King's Continent for ten years, I finally activated the King's System and got a 100% sure-hit hand knife at the beginning. Mission: Defeat a hundred gangsters to obtain a custom skill. And such good things? I want to customize the overlord color haki from One Piece. Isn't this enough? Open the mall: Susanoo, Thunder Release Kirin, Wind Release Spiral Shuriken, Earth Blast Star, Mangekyō Sharingan, Zanpakutō Ryukenwaka, Divine Spear, Hyōrinmaru... Wu Zetian: This man is so strong that one man can defeat us with thousands of troops! Ming Shiyin: I am not as good as him in terms of conspiracy and strategy. This man has extraordinary strategies! Old Master: He knows everything about astronomy and geography, and even understands the origin of the King's Continent! Sun Bin: I gained the ability to jump in time only after losing my legs. He actually mastered the origin of time. Ying Zheng: I seem to have been living in the shadow of that man! What? Li Bai actually became the Great Demon King? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.