In the near future where memories can be read and stored, Ling Chen, the top "memory submariner", exiled himself due to a mission failure. He lives with the nightmare of his past all day long, until a commission he cannot refuse pulls him back into the abyss. He needs to dive into the sea of consciousness of a mysterious vegetative person "An" and retrieve a blocked core memory. However, this ocean of broken memories is far more dangerous than he imagined. The entrenched defense mechanisms, distorted memory echoes, and a lonely lighthouse not only hide shocking secrets, but also resonate with Ling Chen's own tragic past. When the sea of oblivion begins to whisper, he must make a decision: salvage the truth, or be swallowed completely by the tide.
