In the future city "Xinhai" where memories can be extracted and traded, Lu Chen, a top memory restorer, repairs other people's broken time all day long, but he can't find the last memory he lost about his deceased wife. An anonymous encrypted email, like a pebble thrown into stagnant water, led him to the darkest corner of the city - the black market of memory. There, every memory is clearly marked with a price, and every secret has the potential to be revealed. In order to piece together his wife's last smile, Lu Chen embarked on a dangerous journey, but as he got closer to the truth, he discovered that what he had forgotten might be far heavier than what he was looking for.
