Oni

This is Oni, Raischenzo's older twin brother. While Raischenzo uses fire and lightning, Oni uses Ice. Oni is also capable of transforming into a Cerberus. Unlike Raischenzo, Oni is more laid back, and comical, but he also keeps Raischenzo in check making sure the demon king doesn't destroy all of humanity in his bid for power. However he has little to no influence over Julieah, who does pretty much whatver she wants.