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

In the center of the bustling capital of Velmusia, it was not a time of joy amidst the softness of spring, but one of mourning.

"I can't believe he's gone…Just like that."

"We've lost the Champion of Zeus, what are we to do now?"

To the people of the city that harbored the great world tree, both commoners and nobles alike, human or beastman, elf or dwarf, they wept as if they lost a loved one.

Fluttering amidst the crowded streets were velvet petals, like a lavish snowfall as the grieving masses looked upon the grandiose coffin that housed the fallen hero. It was as beautiful as a home for the dead could be; a casket carved of the finest marble, glistening enough that the moonlight dazzled as it trickled across its shape.

Boy of The Tree