Dual Cultivator Reborn [System In The Cultivation World] - Chapter 4 - Negative Image

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

After experiencing heartbreak from being abandoned, he enlisted in the military.

And then, he became a war hero.

“As if I’d marry an ugly woman like you!”

Gu Yanfei was reborn. In her last life, it was only after her death that she realized she was the real daughter in a story about a real and a fake rich daughter. She was supposed to be the daughter of a nobleman, but someone switched her with another child at birth and left her leading a wretched life — a cannon fodder from start to finish. The female lead was the fake rich daughter, but she was also blessed with good fortune and the affection of the Gu family, taking everything that was rightfully Gu Yanfei’s.

In that life, Gu Yanfei lived as she died, with no rhyme or reason. However, after her death, she transmigrated to a cultivators’ realm and became a healer… But after cultivating herself for 200 years, she failed her ascension trials. Then, one of the divine thunderbolts struck her and sent her back to her last life — back to the moment when the identity of the rich daughter was exposed. Upon her return, everyone in the nobleman’s residence was laughing at her for being illiterate and uneducated, a far cry from the fake rich daughter blessed with good looks and a kind heart, who stood above the rest. They just did not know that Gu Yanfei was a fully-leveled character, reincarnated back to this moment!