Name: Naito Mudano Age: ??? Birthday: December 31st A member of the Oni Agency and an instructor at Rasetsu Academy. A rationalist who hates waste, he wears roller skates simply because they allow him to move faster. He is basically expressionless, but he is actually kind and surprisingly cares for his students. His students affectionately call him "Muda-sen." Currently serving as an instructor at Rasetsu Academy, Mudano was once an elite member of Tokyo's combat units. He is a legendary talent who once rained down the blood of a hundred Momotaros. Mudano takes the death of his comrades more heavily than anyone else, and it is said that he adds to the tattoo on his arm every time a comrade dies. As an academy instructor, he is strict; for the past few years, he hadn't passed a single applicant during the entrance exams. However, this year's group was full of talent, and he passed seven students, including Shiki. Fighting Momotaros is a life-or-death matter. He is strict now to ensure they don't die, making him a good mentor who truly cares for his students.