The man code-named Zero woke up in a pure white and sterile room and was told that he had undergone purification and that all painful memories had been erased in exchange for a new life. He is guided by a calm and rational navigator who promises that this is a perfect start. However, the sporadic memory fragments, the smell of earth after the rain, the illusion of a woman's name touching the piano keys with her fingertips, were like unquenchable sparks, burning his blank soul. He began to wonder whether purification was a gift of healing or a prison that imprisoned his thoughts. In order to find the answer to who I am, he must dive into the deep sea where he was deliberately forgotten and fight against the invisible system that tried to trap him on the island of memory forever.