Lay Glanzudlii

A demon in black attire with white hair and faint blue eyes. He is one of the generation of chaos, and is known as the "Sword Saint of Alchemy" because he can handle not only demon swords, but also spirit swords and god swords. He claims to be good at fighting under someone else, and despite being able to use the that shows the qualities of a team leader, he tells his homeroom teacher Emilia Ludowell that he is not suited to be a leader and tries to join Anos' team. He goes to Anos to ask to be included in his team, but ends up having to fight because Anos set the condition of showing his power in the team competition. He is a pure-blooded demon of the royal family, but he doesn't particularly care about that and treats everyone equally.

In his battle with the idol of the Seven Demon Emperors, despite the difference in the abilities of the demon swords, he showed a feat of causing chipping by throwing multiple demon swords, and fighting with only the chipped part of the sword. In the end, he broke the idol's sword with accurate attacks on the chips and sword pressure, surprising everyone around him.

In the team competition, he showed an equal fight with Anos in a sword fight, and succeeded in breaking the branch that Anos was using, but because the broken branch was aiming at Ray's throat, it was Anos' victory. Anos is surprised at Ray, who gets stronger and stronger during the fight. Ray says to Anos, "I feel like we've met before," and Anos speculates that Ray might be the reincarnation of Shin Reglia, the right arm of the Demon King.

In the Demon Sword Tournament, he was happy to be chosen as a participant with Anos, saying, "I can fight with Anos again," but his sick mother, Sheila, was taken hostage by the royal faction, and Ray himself was brainwashed by someone and had the "Contract Demon Sword" embedded in his body by Melheis. In the final battle, he confronts Anos, but is pierced in the chest by his demon sword and is dragged into the dimensional prison by Melheis. However, Anos did not inflict a fatal wound by destroying the "Contract Demon Sword" embedded in Ray's body, and Ray fights with Anos against Melheis. Ray, who is not used to dealing with magic, struggles against Melheis' attack, but with the help of Anos and Sheila, who has transformed into a "Spirit Sword," he manages to overcome the crisis and contributes to the defeat of Melheis. After returning to the original space, he is released from the bondage of the royal faction because Anos revived Sheila's root and resurrected her.

His true identity is the result of the hero Canon, who fought with Anos 2,000 years ago, repeatedly reincarnating and being reborn as a pure-blooded demon. He still has the seven roots, which are the characteristics of the hero Canon.

After being assassinated by Jerga and others, he planned to be killed by the human side as the fake Demon King Avos Dilhevia in order to end their chain of hatred against the Demon King. He erased the memories of the Seven Demon Emperors with their consent and prepared for the plan by spreading the legend of the fake Demon King over 2,000 years by merging with his own root and controlling it. During the competition with the Hero Academy, he stole the Spirit God Human Sword Evansmana, which was enshrined in the temple, to execute the plan, and declared war on the human city of Azeshion to be killed by humans, but Anos, who realized his true identity and purpose, intervened to prevent the plan, leading to a battle.