Su Wan is a top memory restorer, but he cannot cure the heartache of his father's disappearance.
Until the mysterious hacker Gu Yubai broke into her studio and left behind half a damaged "pseudo-memory ball".
The image in the ball turned out to be her father who had been missing for many years.
She is forced to cooperate with this memory hunter and sneak into the black market to find the truth.
Gu Yubai is deaf in his right ear, has silver hair and black clothes, and is at the top of the most wanted list of the Memory Administration.
He hates memory trading, but he relies on it to survive: "Every time I sell a memory, I lose one day of my life."
The two fled in the maze of false memories, and Su Wan discovered that Gu Yubai's body contained key clues about his father. "The memory fragments you sold contain evidence that my father was kidnapped." She asked tremblingly.
Gu Yubai took off his hearing aid and said in a hoarse voice: "I will give you my life in exchange for a kiss. Is it a deal?"
When the administration's pursuers broke into the door, Su Wan kissed his cold lips.
The false memory collapsed the moment the two touched each other, and real emotions came flooding in.
It turns out that the most dangerous memory hunter has already pawned his heart to her.