Teseo, also known as "The Serial Experiment" is a member of Eden's "The Seven" possessing the rank of Bishop, and one of the antagonists of Azure Striker Gunvolt 2. He is also the main antagonist and final boss of Mighty Gunvolt Burst.

An eccentric person with a bizarre obsession with the internet, Teseo uses a lot of internet slang in his speech, a trait that tends to annoy everyone around him even when he doesn't intend to. He has an affinity for the Septima Hack the Planet, which allows him to take physical matter and turn it into computer data and vise versa.