On the edge of the Forgotten Sea, there is an isolated island called "Guixu". All the memories forgotten by the world will be turned into glowing fragments and carried ashore by the tide. Lin Mo is the only "memory collector" on the island. He makes a living by salvaging and repairing memories, but he can't find his past. A commission from an old woman involved him in an elaborate memory scam. He discovered that someone was secretly tampering with and stitching memories together, trying to erase the real pain with false beauty. In order to retrieve the truth, Lin Mo must dive into the deepest part of the Sea of Oblivion, fight against the mysterious opponent who calls himself the "Dream Weaver", and face his most cruel memories that have been dusted away.