At the end of the world, there is a lighthouse that exists only to store memories. Lampkeeper Shen Yu, a man escaping from his past, archives the "light dust" of others' sealed memories day after day. He believed that memories could not hurt anyone as long as they were not touched. Until one day, a memory box containing screams and fear was sent to the island. Inside is the fractured consciousness of a girl named "Zero" who claims she was murdered, and this jumble of memories is the only clue. In order to solve the mystery of her death, Shen Yu was forced to dive into the emotional whirlpool he feared most, only to find that the key to the mystery was buried in the past that he had deliberately forgotten.
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