In the center of the Sea of Oblivion stands a lighthouse that stores human memories. The lampkeeper is silent, a man with no past, guarding the story of others day after day. When Ling Shuang, an elite searcher from Yongyi Company, lands on the island with a secret mission, the silent and peaceful life is completely broken. She is looking for a No. 0 Crystal that is classified as taboo, and this crystal is the only key to unlocking Silence's life experience. In the whirlpool of duty and truth, Silence is forced to make a choice, a choice that can subvert the entire memory storage system and reveal the deepest secrets of human nature.
