It's Zeppelin's first month of Year 11, and he's the same as ever. He one day tries to trespass into one of the lake provinces but witnesses an aberrant wormhole formation. He escapes, but as witnesses, he and his friend Nikita are abducted by the ACU. From then on out, he's under constant surveillance, much to his dismay. He tries to figure out the wormhole anomalies.
An average kid, Zepplin is outgoing but gloomy. He's the typical high school protagonist—steadfast, refuses to follow norms, and, at times, unable to discern what's right and what's wrong. He can get over his head and not think twice. And he refuses to admit defeat, even in situations where he has to. Despite that, he's caring and willing to help those in need.