He is Megumin's father and a magic item artisan of the Crimson Demon Magic Clan.Hyoizaburoo is serious and hardworking. He is obviously a talented magic item craftsman, but his chuunibyou traits of the crimson demons appear as side effects added to the magic products of him. He originally has a very harsh behavior towards Kazuma . However, that quickly softens, almost comically, when Kazuma brings out the food gifts.
He works very hard and cares deeply about his family. 