Plot:
The story revolves around Rin Okumura, a teenager possessing abnormal strength and endurance who, along with his twin brother Yukio, was raised by Father Shiro Fujimoto. One day, Rin learns that he is the son of Satan, the strongest of all demons. Witnessing Shiro dying to protect him, Rin ends up doing what his guardian asked him never to do: draw the demon-slaying blade Kurikara, which restrains his demonic powers, from its scabbard. From that moment on, Rin not only gains permanent demonic features like fangs, pointed ears, fiery "horns" and a tail, but also the power to ignite himself into blue flames that can destroy almost anything they touch.
At Fujimoto's funeral, Rin has an encounter with Fujimoto's friend Mephisto Pheles, who agrees with Rin's wish to become an Exorcist like his guardian to become stronger and to defeat Satan. Rin enrolls at the prestigious True Cross Academy, which is actually the Japanese branch of an international organization dedicated to protect the human realm, Assiah, from demons and other creatures from the demon realm, Gehenna. Rin takes part in a special Exorcist course, the existence of which is known only by a few. Much to his surprise, he finds that his brother Yukio is already a veteran Exorcist and will be one of his teachers.
Some of the Characters:
1. Rin Okumura
- son of Satan and elder twin brother of Yukio
- as a child, he had an unnatural temper and strength that his fellow children and even his teachers called him the "Demon Child"
- powers and abilities: (1) superhuman strength (2) knight (3) tamer of spirits (4) half demon (5) pyrokinesis [ability to control blue flames] (6)regenerative abilities (7) demon telepathy (8) cooking
- sleeps 11 hours a day
2. Yukio Okumura
- rin's younger twin brother
- a genius, became the youngest exorcist in history
- secretly trained as an exorcist since the age of 7
- powers and abilities: (1) his medical ability is top notch (2) impressive accuracy [dragoon] (3) half demon
- ambidextrous
3. Shiro Fujimoto
- priest, exorcist, Paladin of the True Cross Order and adoptive father of Rin and Yukio
- power and abilities: (1) an all-rounder [dragoon, doctor, aria, tamer and knight]
- was the first ever paladin (highest rank given to an exorcist0
4. Mephisto Pheles (Samael)
- an exorcist and the principal of True Cross Academy
- holds the title "King of Time" and is the second-strongest among the demon kings
- powers and abilities: (1) an honorary knight (2 ranks below the paladin) (2) barrier (3) transformation (4) time-space manipulation (5) Summoning (6) flaming pentagram
5. Shura Kirigakure
- upper first class exorcist and rin's mentor
- Shiro's apprentice and inspector of the Vatican
- powers and abilities: (1) knight and doctor (2) dabo [serpent fang technique] (3) hebiransu [snake lance technique] (4) has a familiar spirit [snake]
- descendant of the female ninja school, Kirigakure