Mordred

The ninth seat of the Rounds, known as the "Human Overcoming Magic Sword," uses the "Invisible Magic Sword" Invisible. In Volume 4 of the book, he disposes of Doemu and Reina, whose misdeeds were exposed, as they were no longer needed, and tries to massacre the citizens of Oriana's capital by activating the Black Rose, but the Shadow Garden intervenes. After Ragnarok was defeated, he ate the flesh of Ragnarok and transformed into a demon, but was ultimately annihilated by Shadow's I Am Atomic. At that time, a "gate" opened, and Shadow and Beta were thrown into the world where Minoru was, but Mordred's head was also miraculously preserved and thrown along with them. Later, Beta's hypothesis, when slammed against the wall, released the accumulated magical power, causing a "gate" to appear, and Shadow and Beta (and Akane) returned to another world.

In the TV anime version, the scene where he scolds Doemu for failing the strategy at the Bushin Festival is depicted. Also, his armor and cloak are artifacts, and he battles Beta and Epsilon, but loses due to a difference in skill level.