In Liulic City, where neon lights and data flows intertwine, Lin Mo, a top memory archivist, makes a living by sneaking into other people's memories. He is calm and professional, but he is unable to piece together his own broken childhood. An unusual commission led him to the mysterious woman Su Qing - she wanted to find a lost lullaby. When Lin Mo dived into the depths of her misty memory, she unexpectedly came across an echo of her own. That lullaby, like a key, is about to unlock not only Su Qing's past, but also a shocking secret that locks the fate of the two people on the "island of memory". This is not only a pursuit of memory, but also a redemption of the soul.
