In 2147, fifty years after the awakening of Source Energy, humans built nine federal cities on the wasteland.
Tang Jue, a scavenger in the sewer, was judged to be an F-class waste with "source energy vomiting syndrome".
On the verge of death, he awakened the [Eye of the Abyss] - a forbidden talent that can see all energy weaknesses.
But what followed was a secret that could overturn the world:
The source energy core of all warriors is the "harvest chip" implanted by alien civilization.
Once every hundred years, millions of warriors will be sacrificed on the "Harvest Day".
