Myst is among the Demon Kings that stood out during the Ancient Demon Wars. Despite being hailed as such, he is an Abaddon like Lapis and prefers not to be involved or associated with matters concerning demons or the Demon World.
Shortly after the war, Myst hid in his underground labyrinth for the longest time which earned him the nickname 'Secret Demon King'.
- Myst is the last of the Four Demon Kings that was introduced in the story.
- He is also the only Demon King that is yet to be playable.
- Myst mentioned that giving concerts is a small hobby of his.