The heir apparent to a prestigious shrine in Kyoto. A classmate of Rin's at the Exorcism Cram School. His juvenile delinquent-like appearance belies the fact that he is actually a top student, serious and diligent. He can get emotional at times, and is often at odds with Rin, but at heart he is a caring, big-brother type.
Ryuji Suguro (勝呂 竜士, Suguro Ryūji?)
Voiced by: Kazuya Nakai
Ryuji (nicknamed "Bon") is a stubborn and hot-tempered individual. Despite his delinquent appearance (blonde streak in his naturally black hair, piercings) and attitude, he is very hardworking and the best student in class. Ryuji is the heir to the Cursed Temple in Kyoto. Because of the destruction of the temple in the Blue Night and his anger towards his father Tatsuma Suguro, he swears he will defeat Satan (a goal he claims Rin stole from him) and rebuild his Temple. When he found out Rin was son of Satan, he got angry and stopped speaking with him at all until he joins his classmates to rescue him from prison, when he claiming that he only blames Rin for not trusting his friends with his secret. Ryuji is currently an Esquire, and trying to achieve Meister in both Aria and Dragoon