Victor

Victor(Last Name Unknown) Is a Demon Fusion doctor that came to Johei(possibly called by Gouto) to help him. He is big coffee drinker and set up a coffee machine along with his lab in Johei's attic. When he first arrived, he was accompanied by his demon robot, Daidarobotch. According to him, he doesn't uses those cages that are powered by lightning to fuse 2 demons. Now he operates everything through his phone, from fusing to summoning demons.