Ling Mo, a restorer of ancient cultural relics, inherited a mysterious pre-Qin obsidian mirror after his mentor passed away unexpectedly. This mirror, known as the "mysterious mirror", not only reflects the afterimage of incredible "possibilities", but also involves him in a secret organization dispute that spans a thousand years. Reporter Su Wei met Ling Mo while investigating a bizarre disappearance. Her keen intuition and unyielding spirit of investigation made her a key ally for Ling Mo in uncovering the mystery.
As the research on the mysterious mirror deepened, Ling Mo discovered that it was not a simple divination tool, but a "key" or "terminal" to some older and more powerful existence. A secret war between a secret society calling itself the "Guardians" and another "Revolutionary Front" eager to harness the power of the Xuanjing gradually surfaced. Ling Mo's parents, who died in an "accident" many years ago, seem to be inextricably linked to Xuan Jing's secret.