Global Killing: Awakening SSS-level Talent at the Beginning - Chapter 1350:

A small immortal clan, with the efforts of the ancestors of the past dynasties, slowly developed into an immortal clan. This is the history of the development and growth of a small family. During this period, there were ups and downs, and there were also struggles for power and profit.

- Description from novelbuddy

Shaymon, the man who has achieved the apex of dark magic, is framed as being a Demon King and is killed.

Xin Yun, a sarcastic young man, traveled to an unknown world by chance, but lost his chance to become the strongest because of his obsession with women... or sex. In a collision of the powers of nine powerful men, an incredible thing happened. Xin Yun was reborn back to the time when he traveled to the Isekai world. A fantasy journey is about to begin... [The comic adapted from this novel is popular all over the world]

Because my father was an Earl and my deceased mother had been a commoner, I was burdened with a narrow life as an illegitimate child. As a 16 year adult, I have decided to leave the aristocrat family registry and become a common citizen. I wonder if the knowledge I obtained as a member of nobility will help me in living as a commoner.