I Will Be the Greatest Knight - Chapter 1: A Second Chance

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

Reborn in a parallel world, Fang You landed on earth with the cry of a newborn!By achieving growth goals, he could unlock various unique talents, positioning himself to win right from the starting line!As a baby: Accomplish 1,000 rollover movements to unlock the talent “Reverse Life”;As a toddler: Master 10 paper airplane folding techniques to unlock the talent “Origami Celebrity”;As a youth: Secure 100 victories in “Three Kingdoms Kill” to unlock the talent “Rising to Prominence”;“Absolute Focus,” “Eat without Gaining Weight,” “Never Nearsighted,” “Five Seconds to Sleep,” “Photographic Memory”...With the continuous acquisition and accumulation of growth energy, more all-around talents gradually emerged...Starting as a well-known internet sensation baby cutie and accompanied by the neighborly companionship of a girl who was like a sister from another life, enjoy the sweet, loving daily life of winning from childhood to adulthood!

Kaito Nakamura, a shy university nerd, thought he’d found love when the stunning Aiko chose him as her boyfriend. Their sweet, fluffy romance fills his lonely world with hope—until he discovers she’s cheating on him with multiple guys, reveling in the taboo thrill of betraying someone so innocent. Heartbroken and humiliated as explicit photos of her circulate online, Kaito’s tears are interrupted by a mysterious popup: the “Revenge NTR System Beta.” Promising retribution but with a chilling condition — he can’t break up with her.Contains Ntr, read at your own risk

A person's perspective plays a vital role in developing one's personality. What happens when you realize the world you live in is the same as a Novel.

Zero Elea gets a Skill called Parallel Memory which allowed him to get the memory of his alternative self of a different universe.

He realizes that the world he lives in is similar to the novel he used to read in his alternative world. The world will face catastrophe in the future but there is no need to worry as there is a main character working hard to save the world.

And what about me? I am but a mob character.