Lu Zhao, a graduate student who stayed up late to work on his thesis, woke up after a cup of instant coffee and found himself lying in an unfamiliar dense forest. A young man who calls himself the "Keeper of Eden" tells him: This is the Garden of Eden, which is being swallowed up by a corrupt force called "corrosion".
The boy had no name, no companions, and had been alone in this collapsed paradise for who knows how many years. His hands were shaking, and there were hideous scars on the backs of his hands. He was the most afraid when he said "Don't be afraid." The reason why Lu Zhao was chosen was not because he was a hero or a chosen one, but simply because he needed a living person to remember everything that had ever existed here.
Something stared at them from the shadows across the lake. The young man said: "That's not a human being." And those beings who chose to fall are slowly waking up in the darkness.
Lu Zhao thought he was just an audience member who was forced to go on stage, but he soon discovered that his connection with this land was far deeper than he imagined. What is hidden in the boy's eyes, and what is the growing darkness in the deepest part of Eden - the answer is buried in his forgotten memory.
