On the isolated "Silent Whispering Island", Lu Chen, a top memory weaver, repairs or deletes memories for clients to numb their forgotten past. He is calm, precise, and treats memory as programmable data. Until a mysterious woman named Irene arrives and entrusts him with retrieving a deeply blocked childhood lullaby. When Lu Chen dived into Irene's chaotic sea of memories, he found that the sinking melody resonated strangely with his blank past. This is no longer a simple commission, but a dangerous journey where you are forced to face the truth. On the island of memory, he must salvage the forgotten truth, otherwise he will be completely swallowed by the deep sea called oblivion.