sentences:  A genius inventor, Leo is the one who invented the mechanical creatures known as Gōryū that his fellow Makai Priests begin using to fight Horrors, though he does not show the same liking or passion with conventional machines.He is surprisingly humble and friendly for a young genius, without even the slightest hint of cockiness or sense of superiority, though he is shown to have a sharp tongue.Like his brother, he has no qualms about using questionable methods when it comes to banishing the Horror menace, though nowhere near as extreme as the methods of Sigma.