For fifteen years, the world has been torn apart by pollution and strangeness.
Lu Chenzhou, a scavenger from the abandoned city, has two secrets:
First, the black swirl on the back of his left hand allows him to "see" the serial number of the contaminants.
Second, he has been looking for the sister who was officially declared "cleared".
Until one day, he picked up a broken fragment of a strange object in the garbage dump - a line of words appeared on it:
"Sequence: 0001｜Position: Origin of Pollution·Seventh Floor｜Status: Awaiting Awakening"
In the last photo of my sister before she disappeared, her fingers happened to make a "seven" sign.
From then on, Lu Chenzhou embarked on a road to the bottom of the world.
He wants to find the existence numbered "1", and then - clear it to zero.
