In humanity’s last stronghold, the Ninth District, a cold regime of steel divides the world. The Upper District’s halo of light shines forever, while the Lower District’s dust-choked streets struggle in darkness.
Gu Yan is the youngest officer in the command center. Reason is his creed, and order is his world. Then, during a pursuit, a wild young man named Yun Yi injects a mysterious blue serum into his fate.
From then on, reason and reckless abandon become unexpectedly entwined. To stop a spreading plague, they set aside their prejudices and, for the first time, touch the truth of each other’s worlds. From wariness to interdependence, from using each other to cherishing each other, they investigate the truth while posing as an intimate couple in a perilous gray zone. Beneath their false identities, their quickening hearts are harder and harder to conceal.
But when they join forces to reach the deepest secret of the Ninth District, they discover that the so-called sanctuary is one enormous lie. In this cage woven of light and shadow, two utterly different souls are drawn to each other and become each other’s light.
This is a romance that crosses class boundaries, a love that blossoms in the face of despair. For each other, they will break the cold old order and build a new world called “home” atop the ruins.
[Where light and shadow meet in the Ninth District, amid a vast sea of people, you are the only one I see.]
