Ipponzuno "Kidoumaru"

A powerful demon from Matou. He enjoys sowing chaos among people. In the past, he destroyed Kyouka Uzen's home, destroying everything she had. He obeys those stronger than him, which is why he loyally served Aoba Wakura. Shikoku poisoned him, causing him to revert to his feral state and attack Aoba. Kyouka destroyed him, thus getting her revenge.