Hiropon is the leader of the Crimson Demon Clan and Yunyun's father. Like all Crimson Demons, the Chief has red eyes and dark hair. He is a middle-age male, with a mustache. He wears open-finger gloves and a neck choker, and, despite these seeming tacky to outsiders, his sense of fashion is admired and considered to be fashionable attire for among his peers. He has a cheerful and carefree personality. Even though he loves Yunyun and plans to pass the chieftainship to her later on, he lets her explore the Fantasy World on her own. He even seems to encourage her to go out and gain new experiences/appreciations about the World. He is also chuunibyou like the rest of the Crimson Demons.