earn till death

Synopsis:
In a world plagued by darkness of chaos, ever since the arrival of a gate from another dimension an unknow ark boat appeared on dimension sets off a series of devastating events. Otherworldly beings pour through the gate and unknow species came and slaughtering millions and leaving humanity defenseless. As if that wasn't enough, another invasion takes advantage of the chaos, and a nuclear strike, a pandemic, and other catastrophic events push humanity to the brink of extinction. Centuries pass, devils and the undead rise from the world is already at its end with history repeating itself as the last remnants of humanity struggle to survive, witnessing the world burn before their eyes.
However, in this grim reality, one man refuses to accept defeat. With an unwavering determination, he manages to stem the tide of destruction and earns himself the title of "God" from the surviving populace. Though lacking supernatural powers, God possesses an unknown ability to guide and protect people through his words alone. His arrival ignites a glimmer of hope within the hearts of the few remaining humans, who believe he can be their savior.
To restore order in this desperate world, God establishes an organization, complete with rules, a prison, and a system of punishment. Those who have given up on life and have succumbed to the darkness are sent to the gulag, condemned to starve in solitude. Others are thrown into brutal survival games, where they must fight not only against each other but also against the horrors of the wasteland. Yet, there are deeper mysteries and unknowns that lie beyond the surface, shrouded in secrecy.
Amidst this desolate backdrop, we encounter Kaoru, a Japanese student who led an average life until a tragic accident claimed his life. Unexpectedly, Kaoru is given a chance to be reborn on new world, but he accepts this offer without comprehending the conditions attached to it. As Kaoru embarks on this new existence, he gradually uncovers the truth behind his rebirth and unravels the sinister intentions lurking behind God's facade.