Hyde Jayer hails from France and has been integral to the band ECLIPSE since its founding generation. He actively serves as a vocalist, collaborating closely with fellow member Dimitri. Standing 190 cm tall, his designated image color is "Superior White." Hyde typically carries himself with grace, yet displays a sharp and occasionally tongue-in-cheek demeanor toward Dimitri and other acquaintances. He shares a vampiric lineage with Guiltia Brion and Dimitri Romanee, all transformed by the same progenitor vampire centuries ago. This bond establishes them as non-biological vampiric brothers, each approximately 300 years old.