『Rin Okumura』

Age: 15

Birthdate: December 27, 1995

Hair: navy blue

Eyes: blue

Height: 173 cm (5' 8")

Weight: 63 kg (138 lb)

Blood type: A

Pastimes and talents: cooking, sleeping, eating, spacing out

Average hours of sleep per night: 12

Favorite foods: sukiyaki (with any kind of ingredients)

Favorite manga genres: battle/action, comedy, emotional drama

Favorite type of girl: cute, shy girls

Quote: "Yukio!! I swear to god I'll surpass you!!, just you watch!" "I'll become an exorcist and kick Satan's ass!"

The fifteen-year-old protagonist of the story, Rin is the son of Satan born from a human woman and is the inheritor of Satan's powers.

His powers were sealed at birth into the demon-slaying blade Kurikara, or Koumaken, by Mephisto Pheles, allowing him to live a normal human life for about 15 years. Rin became aware of his true identity after Kurikara could no longer seal the blue flames he inherited from Satan, setting a chain of events that led to the death of his guardian, Father and Exorcist Fujimoto Shiro, at the hands of Satan who attempted to drag Rin back to the demon realm. Exorcist Mephisto Pheles confronted Rin after Shiro's funeral with several exorcists, giving Rin the option to kill them all or die. Rin instead demanded to become an exorcist, an idea that amused Mephisto. Rin was then enrolled personally by Mephisto into the True Cross Academy Exorcist School, and since been pursuing his goal to become a Paladin and to defeat Satan. He is currently an Exwire and attempting to gain the title of Meister as a "Knight".