Clain's world runs on a system that deletes the need for choice, connection, anything real. When he finds Phryne, he enters a story where every answer about what the Fractale System actually is costs him something, and the closer he gets to the truth, the clearer it becomes that the system was designed to prevent people like him from ever asking questions at all. The plot fractures intentionally, mirroring a world falling apart. This is a show that looks like Ghibli but thinks like a manifesto about control, freedom, and what you're willing to lose to be seen by another person.

A thousand years after the Fractale System brought effortless living to humanity, the system still runs, but nobody left alive understands how it works. On a remote island where it has started to decay, Clain drifts through an aimless life collecting relics from the era before Fractale, with only his parents' holographic Doppels for company. When he helps Phryne, a girl fleeing the anti-Fractale group called the Lost Millenium, she soon disappears and leaves a brooch in his care. Clain activates the old data inside it, which brings out Nessa, an avatar shaped like a young girl. Together they set off in search of Phryne, and Clain begins to learn the truth behind Fractale in a science fiction fantasy adventure.