The Famous Millionaire - Chapter 300

In the third year of the reign of Yu State, it rained in the city of Weizhou.

Li Ang woke up in a daze, dreaming that there was a sword hidden in his head.

- Description from novelbuddy

If you had the chance to go back a few years, relive your life, and rewrite your story—armed with a mysterious system designed to help you achieve your dreams—what would you do?This is the tale of Park Adan, a boy who met a tragic and humiliating end, crushed by a falling billboard on his way home. But fate wasn’t done with him yet.Adan wakes up in his bed, three years in the past, with a second chance to change everything. And this time, he’s not alone. With a system to guide him, his journey to rewrite his life begins—filled with challenges, opportunities, and a quest for redemption.Will he succeed in shaping the future he desires, or will the past catch up with him again?

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates