In the near future, Lin Mo is a top "memory eraser" who can accurately sneak into other people's brains and erase painful memories. Calm and efficient, he sees his memory as editable data and his past as a flawless blank. However, during a routine operation, a memory fragment that did not belong to the client-a red kite with a broken string-broke into his consciousness. This fragment became a crack in his perfect world, forcing him to question his "programmed" life. He discovers that his past is not a blank slate, but a carefully constructed island surrounded by a vast sea of oblivion. In order to retrieve the truth, he must violate all norms and dive into the dangerous deep sea to find a name that only exists in the fragments - "Xiaoqing".
