In the new Kyoto of 2088, the rain never stops, and memory is the most expensive commodity.
Ling Chen, the top memory crystal master in the Diyuan District, has long been accustomed to repairing and selling other people's joys and sorrows in the neon and shadows, until a dying woman thrust a hot crystal into his hand.
This crystal is a curse and a key. It attracted the most ruthless pursuit of the "Eternal Power", the technology giant that controls the city, and also awakened a mysterious artificial intelligence hidden in it.
In order to survive, Ling Chen was forced to associate with this digital ghost, hiding in the bizarre black market of memories, and dealing with the resistance organization that vowed to obliterate everything. He gradually discovered that the secret of the crystal pointed to a terrorist plan called the "Messiah" - a conspiracy that could imprison all mankind in a cage of "happiness".
When memories can be deleted, rewritten, and defined, what evidence of your existence is left?
In this soul-destroying defection, Ling Chen must make a choice: continue to be a scrappy broker, or ignite the fire that can burn down the entire hypocritical world?
