Yukio Okumura
Age: 15Birthday: December 27Hair: Black (Manga) Brown (Anime)Eyes: TealHeight: 180 cm (5' 11")Weight: 70 kg (154 lbs)Blood: Type OPastimes and talents: Formulating plans and reading Jump Square every monthAverage hours of sleep per night: 4Favorite foods: Seafood (especially sashimi)Favorite manga genres: Comedy, horror, suspenseFavorite type of girl: ...Yukio is Rin's younger, fraternal twin brother. A straight arrow and kind-hearted by nature, he is the youngest person to ever pass the Exorcist qualification exam, attaining a Meister in Doctor and Dragoon, and later becomes a teacher at True Cross Academy, where he ironically ends up teaching his older brother in the ways of the Exorcist.It is later revealed that Yukio also possesses the power of the blue flames.(Source: Ao no Exorcist Wikia)