MTL - The Otherworldly Adventures of a Super Naive Girl - v3 Chapter 563 : Ten brides after the selection

Zhang Xuan, one of the most shameless MCs in Webnovel history, enters the [Source World], a plane higher than the Firmament. With the complete Heaven’s Path Library that contains the abilities of Heavenly Flaws, Heavenly Order, and Heavenly Nature, he embarks on a journey to dominate the world.Seeking fate, recognizing fate, understanding fate, establishing fate… While you all are still refining fate, finding fate, and borrowing fate, I, Zhang Xuan, possess eternal destiny!(A novel full of face-slapping moments. Even if you haven’t read “Library of Heaven’s Path,” you can enjoy this without reading barriers.)

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

A decision can destroy the sun, moon and stars. A finger can kill the Heavenly Overlord. While chatting, the Heaven and ten worlds can be annihilated.

A poor little kid walks out from a remote mountain area while holding the Nine Dragons and the Incredible Cauldron. With a control over the time and space eternally, he embarks on the Path to God where he defies the odds of the boundless universe gaudily by fighting against royalty and clashing with the legendary generation.

- Description from Novelupdates