The Orc military has launched a sudden attack on mankind. Teenager Yusuke and his childhood friend Sayaka escape their home city aboard the Human military’s state-of-the-art AI-controlled aircraft-carrying submarine “Galaxius”, but are soon pursued by the Orc military. Yusuke must pilot a “dragonoid” (a dragon-like mechanical war machine controlled by a neural interface) to fight off the Orc military’s cyber-mechs.

Set in the hyper-technologically advanced world of “High-earth” inhabited by Elves, Humans, Orcs, mutants, and androids, this is the tale of Yusuke and his fight to take back his homeland.