I Should Have Just Died - Chapter 126

A modern-day antihero, who was infamous for his devious acts, dies in an explosion meant to take down a powerful criminal syndicate. Waking up in a world of sword and sorcery, he finds himself possessing a fragile, powerless body with a strange “System” that seems broken. Initially thinking he's doomed, he learns that by pretending to be weak, he can manipulate others into revealing their secrets, granting him abilities they possess. As he rises in power, he discovers that the System was intentionally sabotaged—by none other than his own future self.

When a sudden outbreak in a remote village infects 70% of its population, the government swiftly silences any mention of rabies, zombies, or pandemics.University student Yan Cheng dismisses the reports as just another hoax—until his phone dies in a freak accident, electrocuting him in the process.While he struggles to revive his device, chaos erupts on campus as classmates turn into bloodthirsty monsters, the virus spreading like wildfire.As the world spirals into panic, one question remains: can Yan Cheng survive in a reality that seems straight out of a game—or has his luck already run out?

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

On her wedding day, she was humiliated; her status as the legitimate wife was instantly changed into that of a concubine.