Kevin's mecha is red, much like his cloak and appears to be a humanoid mecha similar in configuration to E.S. Dinah with spiky wings instead of solid ones and blades attached to its arms. Its flat horns are reminiscent of the villain Grahf from Xenogears, and its wings are similar to those of the Weltall-Id.
It, and the redesigned E.S. Simeon, is the only E.S. to not participate in a battle in either gameplay or the storyline.
Its forte is close-range mobile combat. It is equipped with two knives that can directly access the U.M.N.'s physical phenomena structure in order to cut any material presence in two, making it practically impossible to defend against. The only countermeasure is to access the U.M.N. structure in the same way as Kevin and to block it "over there," However, that is only possible for those limited few with that ability; in other words, those qualified to pilot E.S. units.
Consequently, one can see battles between E.S.'s less as involving direct combat between physical phenomena (the material world) and more as essentially attacking and defending in the world of consciousness.