In the future urban "Floating City" where memories can be extracted, traded and tampered with, Lin Mo, a top memory restorer, makes a living by repairing other people's broken memories, but he can't find his own lost part. A mysterious commission draws him into the whirlpool: a seemingly blank memory chip is linked to a shocking conspiracy that can subvert the order of the entire city. When he dived into the abyss of data, he discovered that the end of the search for the truth was his past that had been deliberately buried.