DelzGB

[The first arc is about obtaining the system, so please be patient and give the story a try! I promise it will be worth it.] 
In a world where gods have erected a worldly monument, the "Tower of Yggdrasil," people are drawn to its impossible challenges. This towering structure pierces the heavens, concealing both unimaginable beasts and priceless treasures within its unforgiving depths.

Enter the realm of "Adventurers" – daring souls who ascend the Tower's brutal floors in pursuit of glory. The fortunate ones secure the sponsorship of gods, gaining their Blessings to wield divine power in the face of peril. Yet, amidst this celestial lottery, Bastian, an unfortunate adventurer, remains unblessed, navigating the treacherous terrain with only caution and cunning.

As Bastian teeters on the brink of death, a mysterious voice intervenes, offering him a lifeline: [Prometheus System Awakened]
Becoming a chosen “Invictus”--a person chosen as the champion of their god, he finds himself in the ranks of legends, having to learn all too quickly to adjust. 
He must defy the odds, unravel the mysteries of Yggdrasil, and face the trials that await beyond the clouds, making either ally or foe of other Invictus, and the gods that dwell in Yggdrasil.

Tower of Yggdrasil: From Zero To Godhood

Bringing her eyes to what was pointed out, Khalida confirmed it herself as the soft light revealed the one who sat atop the mountain of bones: an unclothed man with a body covered in scars, as if a thousand blades had clashed with his own flesh.

"No…That man, I know him," Khalida admitted in absent shock, slowly shaking her head.

"Not closely, but I've met him on a few occasions…He was present in expeditions, though he rarely spoke to anybody outside of his own group," Khalida explained, "That's Aegenwulf–the leader of the Eviscerators."

The title given to the one who appeared as a stranger to Alcides immediately felt "wrong." It wasn't as though he believed Khalida to be a liar or even wrong, however, that man being right before them seemed impossible.

"The leader of the Eviscerators? The Archbishop himself told us they all died down here," Alcides responded, staying cautious, "Is it possible we were deceived?"

Mysterious Man