Within the vastness of the Three Realms created by Pangu and molded by Nuwa, all things are possible. This is the land that gave birth to countless myths and legends, including those of Sun Wukong the Monkey King, Hou Yi the Sunslayer, the Buddha Tathagata, the Jade Emperor, and more. This was a realm of asuras, devas, gods, Immortals - and the world that Ning found himself reborn into.In his past life, Ning had been a sickly youth, but the philanthropy he had carried out resulted in him being blessed with a new life in the Three Realms as a deva of the Heaven Realm - or at least, that was what was supposed to happen. A series of accidents led him to instead be reborn within the noble Ji clan in another part of the Three Realms, Swallow Mountain. This certainly seemed like a downgrade from being a deva, but he had powerful parents who loved him, maids who doted on him, a mighty clan behind him, and a cultivation technique from a benefactor that was supposed to make him stand out even amongst the devas, to say nothing of the cultivators of this strange land.And yet, not all was well in Swallow Mountain. Monsters abounded everywhere, ravaging the land his clan was sworn to protect. His own clansmen enviously eyed his position, while the other clans of the area hungrily eyed the Ji clan itself. Strife begins to stir as the shadow of war looms. Quelling this was not a task for a mere boy - it would take a true warrior of Swallow Mountain!

Without so much as a warning, humanity in its entirety was suddenly moved to another dimension. Every person without exception.

But this new world with all its opportunities and gifts of wondrous abilities, was a stadium. A deadly arena of an unimaginable scale. And Humanity were to be its latest gladiators. Every man, woman and child was given a weapon and ordered to fight. Stuck in this dimension without a way out, only two options existed for the would be hunters: Fight with monsters to complete the many trials ahead, or perish.

Faced with hordes of powerful monsters, thrown into battle with complete strangers at random, the unfair game of survival began. And from the very beginning, billions of lives were extinguished in mere moments. But even within this abyss of despair was a small ray of hope: If even one person were to complete every raid, then humanity would be redeemed and restored back to its former glory.

No save points, no revives, no retries. Everyone had just one life to make their way through the gauntlet of raids prepared to test their mettle. Within this marathon of death, one man becomes aware of an exception to the rules of the game.