In Xinhai City, a future city where rain and neon are intertwined, Ling Su is a top "memory weaver". He can sneak into other people's memories, repair wounds, and retrieve forgotten things. He regards memory as data, calm and distant, in order to isolate himself from the dusty past. Until one day, a mysterious woman named Mu Yao brought a memory fragment that did not belong to her but was imprinted with Ling Su's aura - a burning lighthouse and a forgotten name. Forced to embark on a journey of exploration, Ling Su must dive into the deep sea of his greatest fear and piece together the truth amidst the echoes of broken memories. He will discover that forgetfulness is not shelter, but that the most dangerous secrets are hidden deep in his mind.