Akuyaku Reijou wa Danna-sama wo Yasesasetai - Chapter 38

How long can one ignore the voices in their head?Nine years. To Mark, that was the limit.For the majority of his life, Mark White has been fighting a constant battle for his sanity. The voices in his head pushed him toward madness one whisper at a time, and the music he used to ward against them was gradually losing its effects.As his mental state slowly deteriorated, Mark spent more of his time working on a game he had been developing and lamenting his lack of romantic experience.One night, the voices dealt him a powerful blow, bringing their battle to an end. To his surprise, Mark won the battle, but that came at a great cost.The voices might have disappeared, but a visual hallucination arrived to replace them, taking the form of a character from his game: Maids VS Apocalypse. Little did he know that the real apocalypse was already coming for him.

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

Doflamingo + cheats + semi-invincible

The villain does not need to be cleansed, all he needs is stronger power.

To win again and again.

Prove who is on the right track.

Achievements achieved:

Punch the Momanosuke Kindergarten and kick the Golden Lion Nursing Home.

Bonebreaker Black Arm General Zefa…

- Description from novelbuddy

I was reborn into a chaebol family.Into a time with no cryptocurrency, no internet, and nothing else.