After work, start to speedrun the other world - Chapter 20 - 16: The Dragon-Slaying Hero

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

To pick is to choose. This is a story about choices. Three thousand worlds full of gods and demons, with a daoist scroll in your hand, you are able to control the entire universe…

Traveling to a different world, a bizarre, mysterious and vast world unfolds in front of Zhao Ji. He wants to run hard in this vast world and live a free and easy life.

- Description from novelbuddy

[Urban Masterpiece! Over a Million Subscribers] The Imperial Physician of Heaven was reborn in the City of Flowers, seized control of the world's viruses, absorbed Soul Consciousness, amassed wealth rivaling nations, held overwhelming power, and was surrounded by beautiful women.