Di Wang Gong Lue - Chapter 117

Monsters, both human and beast, surrounded him. He needed power to survive this new world... but he arrived as a mortal.One moment William was at work. The next, he was captured by lunatics.He had never believed in the fantastical, but he had no choice after finding himself in another world surrounded by demonic cultivators trying to extract his soul. If he couldn't find an escape, his journey would end just as abruptly as it started.William was inches from death when a benevolent cultivator saved him from that fate. Seeing his pitiful state, the cultivator decided to give him an opportunity in the form of a tool: A system to guide him on the path of cultivation.William would use it to claw his way to the peak of the cultivation world.

Jiang Chen travels to a fantasy novel world and becomes the villainous senior brother.He didn’t have any golden finger (cheat) and didn’t want to end up as villainous cannon fodder, so he repeated nine reincarnation cycles, only aiming to be an upright senior brother.Yet fate is unjust, bestowing upon him the aura of a villain, causing him to suffer countless misunderstandings and disdain.Until the ‘Tenth Life’!In this life, Jiang Chen gave up. His heart grew cold, and he also finally let himself go.Jiang Chen: “Since heaven wants me to be a villain, why should I defy it?”……My name is Jiang Lianyue, and I have a villainous senior brother who is despicable.I despise him, detest him, and even wish he would die quickly!But one day, I witnessed a flashback of nine lifetimes…In the first life, my senior brother sacrificed his own core to help the second brother rebuild his core, damaging his own foundation in the process.In the second life, I was afflicted with a cold poison, and my senior brother, with his modest cultivation, refined pills for a hundred days to cure me at the cost of destroying his own core.In the third life, I finally understood everything…

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

Dying at a young age after a disappointing life. Mat thought he hit the jackpot when he got reincarnated on a tropical island as a baby. Here, exploring mysterious lands and learning magic are a reality. The world of Elydes is beautiful and magical, wild and savage. While the Guide is impartial to all, people are not. Mat has the lowest starting point possible, and those like him rarely go far. To not let his humble birth define his life, he'll need to find the determination to grow stronger and delve into the mysteries of Elydes.