Supreme Son-in-Law - Chapter 292: These Fans Are Really Crazy

Chu Li was a particle physicist until a freak accident took his life and transmigrated him to a parallel universe – one where he wakes up with inexplicable abilities and finds himself in the running for a job in the imperial palace.

Suddenly pulled into a world filled with Specters, Fang Xiu woke up with a unique ability: Reset. Every time he died, time would rewind to the moment before he was killed.In this strange and dangerous world, Fang Xiu could have chosen to hide. Instead he announced to the world, “Yes, I’m a prophet. I can see the future!” As his predictions kept coming true, his title of the Prophet spread around the world.His words became the truth. They became the future.“I have seen the future,” he announced, attracting people from all around the world.His followers took it to the extreme, declaring, “Should the Prophet decree your demise one day, don’t waver, don’t question, just obey. For hesitance only leads to a far graver fate.”During a B-level Specter event, known as [the Spawning]A teammate warned, “The creature is hiding among these villagers. We need to be careful.”Fang Xiu pointed to the last row and commanded, “The one in white. Yes, you. Come out!”In an A-level Specter event, called [Lantern Heads]One teammate warned, “This area is crawling with thousands of Lantern Heads. If they shine their light on you, your head will fall off. The scariest part is the Lantern Heads float unpredictably. It’s impossible for anyone to get across safely. Wait, where’s Fang Xiu?”Another stuttered, “He, he…he’s on the other side!”The first teammate exclaimed in disbelief, “What?! How did he get across?”The other replied: “He…he just walked over.”

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

This is a cliché story about two young people saving the world.