When a man woke up on an unknown island, he lost all his memory except for the codename Zero. The island is full of metal cubes that appear with strange regularity, pointing to the chaotic rusty compass, as well as a mysterious woman named Lin tide who claims to be the pilot. Each found object is like a key, unlocking a broken and painful memory. As Zero explores the ultimate question of who I am, he gradually discovers that this island is not a geographical cage, but a carefully constructed prison of consciousness. He must make a choice between regaining the pain of the past or embracing a false peace, and Lin tide's true purpose will determine whether he obtains redemption or falls into the eternal sea of oblivion.