A young woman lives, hidden in plain sight in a ruined Hong Kong building after a tsunami destroyed the city - a castaway on a concrete island. Her concealed existence is changed forever when a small child literally floats into her life.

Based on the mysterious explosions that happened in ancient China, with ingenious ideas to unblock the secret truth that has puzzled the world for the audience. The mysterious organization "Night Walk Division" follows the bizarre mystery and bravely rushes into the "No Phase City", and a game about the lives of the people unfolds.

After wiping out the other six states and unifying the ancient China, the ambitious Emperor Qin developed the secret technology to immortality at the expense of these states, by combining humans and machines to extend all lifespans to infinity