In the near future, technology will allow people to selectively erase painful memories. Gu Chuan is the top "memory scavenger" in the industry. He is calm and efficient, and can peel off any scars from the brain as if it never happened. He makes a living from this, and also numbs himself with this - because deep down in his heart, there is also a memory gap about his missing sister that cannot be cleared.
Until one day, a mysterious woman named Lin Wan came to the door with a seemingly ordinary childhood memory. When Gu Chuan dived into the depths of her memory, he heard the lullaby that only belonged to him and his sister. This seemingly simple commission was like a key, opening up his long-lost past. The island of memory began to tremble, and the echoes of the past dragged him into a whirlpool that was far more dangerous than imagined.
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