A First-Class onmyouji and Divine General known as the "Ogre Eater," he's got the skill to back up the nickname. His power comes primarily from the oni he subdues—though Genji Kurahashi has placed a seal on him to keep his abilities in check, much like what was done to Suzuka.
He operates as an Independent Officer and exorcist, which fits his personality perfectly: he's blunt, doesn't care what people think, and has zero patience for social niceties. You'll recognize him by the scar running across his forehead. Fans often note that his rough demeanor masks genuine ability, and he's definitely one of the stronger characters in the series when his powers aren't being suppressed.
Content compiled by AnimeList.moe from publicly available sources.