A kid and his digital partner have to protect something they don't understand because the entire cyber world wants to weaponize it. The Beast Navis aren't just stronger, they're designed to be predatory, territorial, hungry in ways that make every battle feel like it's spiraling toward something bigger than either side expected. Netto keeps fighting anyway, not because he has the power advantage, but because Trill trusted him first.

Trill is a mysterious navi who is said to have come from the world of Beyondard. A new breed of beast-type enemies, the Zoanoroids, is after him because of a special power he holds. Netto Hikari and Rockman take on the job of protecting their new friend while trying to learn what Trill really is and how he is tied to Grega and Faltzer, two legendary cyber beasts. The result is a sci-fi action adventure with mecha elements.