In the "Eternal Night City" where technology can peel off and store memories, Lin Mo, a top memory organizer, can sneak into other people's deepest memories, but he can only find the rainy night when his parents died. He is like an isolated island, carrying the past of countless others, but surrounded by a sea of forgetfulness. Until a woman in red brought a memory crystal containing the "Crimson Butterfly" and asked him to destroy it completely. When Lin Mo touched that memory, he was shocked to find that he was a witness to that tragedy. In order to retrieve the truth, he embarked on a dangerous journey, but he didn't know that every step brought him closer to a cruel secret that could subvert the entire Evernight City.
