I reincarnated in a cultivation world as a omnipotent villain - Chapter 25: A Yandere’s Brain Circuit

The male lead is devoted, the female lead is passionate, childhood sweethearts, everyday family matters, the ordinary daily life of nurturing a wife.

Elyzara Thorne was just an ordinary woman until she died in the dumbest way possible. One moment she was walking down the street, the next, she was choking on a piece of candy and face-planting into the afterlife. Before she could even process her own stupidity, a snarky system appeared and dumped her into the body of a newborn baby.Sounds bad? Oh, it gets worse.Her new moms are the most terrifying tyrants the world has ever seen two ridiculously powerful empresses who rule with an iron fist, burn cities for fun, and make their enemies weep in fear. The entire kingdom is one bad day away from rebellion, and Elyzara’s new mission (whether she likes it or not) is to stop these two overpowered warlords from getting themselves overthrown.The problem?• She’s a literal infant.• Her moms worship the ground she drools on and think she’s the best thing since world domination.• Everyone around her is scared shitless of her “divine presence,” making diplomacy nearly impossible.Can Elyzara stop her bloodthirsty parents from committing war crimes before she’s old enough to walk? Or is she doomed to be the adorable mascot of tyranny?

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

In the world of demons and demons, a hundred ghosts travel at night.Qin Feng, who accidentally crossed over, came to this troubled world with no lofty ambitions.He only wanted to protect himself and enjoy the rest of his life safely.But the sky does not fulfill people’s wishes, excellent men are so outstanding everywhere.The ancestor made a marriage contract, and the talented young lady of the Liu family became a wife.