His powers were sealed at birth into the demon-slaying blade Kurikara (倶利伽羅) by Mephisto Pheles, the True Cross Academy principal, allowed him to live a normal human life for nearly 15 years with his twin brother Yukio and his foster father Shiro Fujimoto.
9] Rin later meets a spirit named Kongo Ucchusma who teaches him how to control his flames (in the anime, this was changed to Shura and Yukio who helped him).[ch.
26] During the battle with the Impure King he inherits a familiar named Karura (a phoenix like demon which has the ability to use strong amount of red flames to incinerate almost everything and reincarnate when it dies) from his father Tatsuma Suguro, he uses its power to create a Gouhaen (a fire-element barrier) in order to prevent any miasma coming out from the Impure King from spreading further.[ch.
Later in the manga, it is revealed that Renzo has all this time hidden his true abilities as he is capable of summoning high level demons to do his bidding.
Her mother, Tamamo Kamiki, loved Izumo and her sister Tsukumo dearly, but accidentally caused herself to become possessed by the nine-tailed fox when the father of her daughters rejected her.
After realizing that she has been tricked but was powerless to do anything, she reluctantly attends True Cross Academy as an exorcist student to become a new vessel for the nine-tailed fox in exchange Illuminati will not harm Tsukumo.
When she was forced to move the nine-tailed fox from her mother into herself, Izumo finally admitted how much she loves the friends she made during her time at the academy and tearfully accepted their help.
Once she was rescued and discovered her sister was adopted in a loving family, Izumo determines to stop pitying herself and move forward with her life.
Originally established as a military order, the organization's centuries-long campaign against demons has allowed it to discover and develop new exorcism techniques from all around the globe.
Mephisto Pheles (メフィスト・フェレス, Mefisuto Feresu) is the Chairman of True Cross Academy's Japanese branch (using the name "Johann Faust V" (ヨハン·ファウスト第五, Yohan Fausuto Daigo) in public).
Their mistrust has its reasons as during the series it is hinted that indeed Mephisto has some secret agenda which involves Rin, working behind the scenes regarding the events around him since he joined the order.
He owns a large collection of anime and manga-related items, some of which feature characters from Kazue Kato's first manga series, Robo & Usakichi.
His ability to transform into a small dog or conjure a giant cuckoo clock are only glimpses of his true powers which allow him to control space and time.
Mephisto is suggested to know what will happen, likely due to being King of Time, and has made more than one comment about how he is manipulating the other characters behind the scenes.
In a fourth wall break, he tells the readers he believes humans have three desires, which are lust (procreation), greed (financies) and knowledge (curiosity).
It is revealed that Shiro is actually born a clone from the Asylum, a facility that gathered orphans and trained them to become exorcists, with a branch called Section 13 serves as experimentation lab to create a suitable vessel for Lucifer.
She trained under the guidance of Shiro Fujimoto to obtain the title "Meister" in Knight and can draw a demon sword from a symbol above her chest when she states, "Devour the Eight Princesses, slay the Serpent".
Igor Neugauss (イゴール・ネイガウス, Igōru Neigaus) is an Upper First Class Exorcist as well as lecturer in the academy, who obtained the titles of Tamer, Doctor and Aria.
"Someone" used a demon to bring his wife, Michelle, back to life, and her mental instability at the horrible memory of the Blue Night caused her to attack anything related to Satan, even the friends of his sons.
Arthur has a great dislike of Rin (simply because of his lineage), being annoyed that the son of Satan destroyed the Impure King.
Lewin Light (ルーイン・ライト, Rūin Raito), better known as Lightning (ライトニング, Raitoningu), is an Arc Knight and an Exorcist of the True Cross Order.
Unlike his father and elder brother Mephisto Pheles, Amaimon initially had little interest in Rin, instead wishing to tour Japan upon arrival, but quickly became obsessed with his younger half-brother after fighting him.
Once he promised not to do anything violent for the time being, Amaimon attends True Cross Academy as Mephisto's nephew and is placed in the same class as Shiemi.
While officially being declared dead, Satan's immobile body was used as lab rat for the order to continue improving Elixir, which eventually led to the Blue Night incident.
Yuri was well-known and popular amongst her peers, but she only has eyes for Shiro whom despite being outwardly violent, she believed has kindness deep inside him.
When Satan did return after his vessel became to deteriorate, Yuri confronted and convinced him to stop his obsession in getting a new body, promising to stay by his side until he dies.
She eventually bore him twin children and they decided to leave Section 13, but their escape was leaked, resulting them being captured by the Order.
After learning of Shiro's death, Kuro lost control and begin attacking the academy, until Rin calm him down, becoming his familiar in the process.
In the anime only arc, Ernst gave the order to have his daughter, Yuri Egin, executed when he found out that she was pregnant with the children of Satan, indicating that his hatred is unbound by family love.
[28] Similar comments were given by Comic Book Bin reviewer Leroy Douresseaux who enjoyed the interaction between the cast,[29] while Chris Beveridge from The Fandom Post noted that while characters' regrouping may feel forced, the revelation of Rin's nature bring multiple reactions to them.