Jenius Aeon (ジーナス・アイオーン Jīnasu Aiōn?) is one of the antagonists from Shining Resonance. Jenius is a major roadblock in the journey of Yuma and company. A swordsman of profound skill, he’s been known to down legendary dragons with just the lone blade he carries. However, he has no affiliation with any of the major powers, instead hunting down dragons as a loner, making his priorities most ambiguous.