The Extra Seeks Chaos - Chapter 207: Dorm building & Time to initiate the plan [Read the author’s thought]

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

After being awakened from their slumber, billions of people found themselves dispersed in various sealed crypts. Surrounded by earth, they each had only a shovel.

Taking place within a world of Measurements―superpowers owned from birth, with most being absolute trash.A world involving numerous secret organisations looking to take advantage of those rare and remarkable few possessing exceptional powers.When there exists Forbidden Knowledge better left unknown.When the discovery of said knowledge results in the inevitable; a world-ending catastrophe.‘Ignorance is bliss.’Fighting against the unrelenting persistence of the one who knows all.Before the tragic fate of the world repeats itself once more.―He must be stopped.

The course of commitments never did run smooth.

After dying on Earth, the King of Mercenaries is reborn as Su Mo in the Firmament and Continent. In this brand-new world, Martial Art is the way of life, and the strong set the rules.

Having awakened a Martial Soul of the lowest rank, possibly meaning he will never go far as a Martial Artist, Su Mo is determined to rise to the top again nonetheless.

However, misfortunes never come singly. The love of his life is soon taken by one of the most powerful forces in the world. With no time to spare, watch as Su Mo overcomes all odds and struggle on the verge of death countless times, in order to meet his love again.

As the protagonist reaches the top in that world, he has to take on more responsibilities and face new challenges.

Follow Su Mo on his relentless journey to become stronger for the sake of those important to him, and uncover the deep, dark secrets and plots in the vast universe.

- Description from Novelupdates