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

"Get back! Khalida, keep Fynn protected!--I've got this!"

Though the struggled words came from the mouth of the Invictus of dominant strength, they seemed absent of reason to the woman of silken, black hair as she held the body of the light-haired youth.

"But he's already…" Khalida said quietly, unable to talk loud enough to bypass the grunts of Alcides.

In her arms, the pale woman of a half-exposed skull was the once cheerful, androgynous Invictus, who convulsed while choking on his own blood. A gaping hole was left through his abdomen, leaving only a pool of crimson liquid that gushed from the enormous wound.

Alcides' boots slid against the tiles as the hulking monstrosity of crystalline skin pushed forward.

The violence that transpired arrived too quickly, leaving none of the Invictus time to call upon their true strength as Alcides finally roared–

Of Death