Gekitotsu no Hexennacht - Volume 4, Chapter 5: There Are Also Those Going

In the second year of marriage, Yvette Thiel was pregnant.Yvette was full of joy, but she got a divorce agreement.In a car accident, Yvette lay in a pool of blood and begged Lance Wolseley to save their child, but Lance left with his sweetheart in his arms.Yvette was disheartened and slowly closed her eyes.Later, it was heard that Lance from New York had a taboo name, and no one could mention it.At the wedding, Lance suddenly went crazy. He knelt on the ground and looked at the cruel woman with red eyes. “You are pregnant with my child. Who do you want to marry?”

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

There’s an ancient saying in Great Ruins, ‘Don’t go outside when it’s dark.’

Killed by a Sage Emperor and reborn as his 13 year old self, Nie Li was given a second chance at life. A second chance to change everything and save his loved ones and his beloved city. He shall once again battle with the Sage Emperor to avenge his death and those of his beloved . With the vast knowledge of hundred years of life he accumulated in his previous life, wielding the strongest demon spirits, he shall reach the pinnacle of Martial Arts.