Finest Servant - Chapter 496

When Mikel opened his new eye, the dead opened their doors.Mikel was just an ordinary, troubled teen until an accident stole his sight.When an experimental surgery gives him a strange new eye, he begins to see more than just the world of the living... and the dead.Haunting visions, ghostly figures, cursed relics, and a mysterious blue interface named Doom — speaking in glowing symbols and shifting data — start to rewrite everything he thought he knew about reality.And as the truth comes into focus, Mikel realized he might be a part of something bigger and far more dangerous than he could’ve imagined.Standing between these worlds, survival isn’t guaranteed. Sanity, even less so.[Welcome to Shaman Protocol.Terms and Conditions (and sanity) not guaranteed.]

After an ominous prophesy is discovered, the swordsmen of the kingdom of Ensis must band together to avoid the fate that has already been foretold.

After the ‘100-Year War’ between the Necromancers and Priests, an all-time genius who’ll shake the power structure was born. “Am I a rare case or something? Do I have talent?” A potential beyond all imagination. He obtained his father’s undead army and entered the great Necromancer school of Kizen that divided the continent. Geniuses are geniuses, even when gathered among the elites. The research community was flipped on its head by the appearance of a new case. Professors wouldn’t leave him be alone, wanting to make him study directly under them. Officials from all over the kingdom and heads of organizations fidgeted over whether to scout him. “Professor! When can I make a Lich?” “Gimme a break. How talented are you? You’re crossing the line, honestly.” A genius among geniuses had appeared.

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