Lay Glanzudlii, a white-haired demon with pale blue eyes, wears black attire reminiscent of a tailored academy uniform. Exiled from the Yvesta family for lacking inherited magic, he was rescued at five by Sheila, a half-demon-half-spirit who became his adoptive mother. Her deteriorating health from spirit disease forced Lay into serving the Royalist faction, though his loyalty remained solely to her.

As the reincarnated Hero Kanon, Lay harbors seven mystical sources granting resurrection while intact. This legacy allows him to split or merge sources, masking his identity even from Anos Voldigoad’s Magic Eyes. Driven by his dual heritage, he seeks to dismantle human-demon animosity by fabricating the Demon King Avos Dilhevia myth. His plan: let humanity slay this false tyrant, sacrificing himself to broker peace.

A peerless swordsman, Lay commands demonic, holy, and spirit blades with ancestral precision. He adapts tactics instantly, mirrors foes’ techniques, and melds magic with combat arts. His physicality rivals Anos, enhanced by Teo Aske’s blessings and speed beyond magical tracking. Though he feigns magical ineptitude to conceal holy energy, his boundless reserves fuel endless large-scale spells.

Lay’s bonds shape his path. His rivalry with Anos matures into mutual respect, rooted in ancient clashes, culminating in confessions of shared history and a fulfilled pact of friendship. Romance blooms with Misa Ilioroagu through adversity, sealed by Azesion seashell vows that endure despite his sacrificial schemes. Sheila’s maternal influence anchors him; he jeopardizes his life for her cure and grieves her temporary death before her revival.

Critical junctures include enrollment at Demon King Academy, Royalist-forced participation in the Magic Sword Tournament, and clashes with Anos to break magical binds. Exposed as Kanon during Hero Academy confrontations, he seizes the Spirit God Sword Evansmana to enact the Avos guise. Battling Jerga’s forces and confronting Avos’ true form—a spirit born from Misa’s essence—Lay abandons solitary martyrdom, embracing unity with Anos and Misa to safeguard hard-won peace.