From A Stronghold NPC To The Final BOSS - Chapter 945 - : The powerful ancient God of the first era

Lanz Kuroda failed his Awakening Test in the most spectacular way possible, he didn’t just rank low, his ass got slapped with an FFF. He was locked out of the system entirely, and sent home like the rejected tutorial character that he is.But when a cracked relic crystal he bought from a sketchy street vendor activates, it boots up something the world shouldn’t even know exists, a hidden system that logs him into an old, forgotten alt account, one with no level cap, restrictions, and absolutely zero oversight.By day, Lanz is still the same guy that no one aspires to be.But at night? In the dungeons?He becomes Zero, an anonymous hunter operating outside the system, clearing high-tier raids solo, and slowly building a legend no one can trace.The world thinks he’s a joke.He’s about to become its biggest problem.

Xiao Ran transmigrated to a fantasy world. As a dungeon guard in the Celestial Dungeon, with a special floor called the Purgatory meant for powerful demons and martial arts experts, he faced a huge challenge from the start. The Eldest Princess acquired a forbidden martial arts technique and was banished to the Purgatory. However, no one was powerful enough to restrain her. All the dungeon guards were defeated. Xiao Ran stepped up and declared, “Your Highness, it’s better for you to behave yourself on my territory” and effortlessly subdued the Eldest Princess.

He progressed from imprisoning the Eldest Princess to delivering the Great Xia Kingdom from the evil clutches of various demons and evil martial arts experts.

…

Xiao Ran was the mastermind behind the scenes.

A generation’s War God, once overlooking the world with disdain, had fallen into disgrace because of a conspiracy, becoming a mere son-in-law. However, what nobody had expected was that it was all part of his grand scheme, and when the winds of change blew, he, the king, returned, with the power to overturn seas and move mountains, as a dragon ascended to the heavens!

It begins on the mountain.

With the glint of a knife, a flash of steel in the hands of a sworn brother. A betrayal.

Stabbed and pushed down the mountain, Zi Chen lied within the red-stained snow, left to die.

This is where it begins; he is given life by lightning,
baptized by thunder.

Those who had once betrayed him should all suffer in his cruel revenge.

- Description from Novelupdates