Episode 1: the devil resides in human souls
Rin Okumura is a teenager with a natural gift to get himself in trouble. Despite that he tries his best to meet the expectations of his twin brother Yukio Okumura and Priest Shiro Fujimoto, who acts as their guardian, until he finally learns about the dark secret behind his origin.
episode 2: gehenna gate
Shiro and his companions try their best to protect Rin from the demons who are after him, but Shiro ends up being possessed by Satan, the most powerful of the demons and Rin's father. Seeing his guardian taking his own life to protect him, Rin decides to fight back by unlocking his demonic powers, even though he knows that by doing so he will not be able to live as a human anymore.
episode 3: brothers
As part of his training to become an Exorcist, Rin gets himself enrolled at the True Cross Academy by the school chairman, Mephisto Pheles. On his first day of classes, Rin becomes shocked to know that Yukio not only always knew about his secret, but also is already a graduated Exorcist and will be one of his teachers.
episode 4: the garden of amahara
Yukio sets out to the school's Exorcist-only shop to stock on some supplies along with Rin. There they find that the owner's daughter, Shiemi Moriyama, is being afflicted by a demon that dwells in her family's garden and, to save her life, they confront it by themselves.
episode 5: a boy from the cursed temple
Having Shiemi as a new classmate, Rin's total disregard for classes brings forth the anger of another classmate of his, Ryuji Suguro, aka "Bon". After learning of Bon's story, Rin finds that they have more in common than he would like to admit.
episode 6: the phantom chef
Rin and Yukio find that Ukobach, a cooking familiar (appointed by Mephisto Pheles to aid them), is responsible for the meals that are prepared for both of them each day. They also learn how Ukobach can be dangerous when someone disrespects his cooking.
episode 7: a flock of plovers
Eager to make new friendships, Shiemi asks her classmate Izumo Kamiki to be her friend and she pretends to agree, but Rin soon realizes Izumo is just taking advantage of Shiemi's kindness instead. Later, the students are reunited at the old dormitory to take part in the Exwire exam, where a ghoul attacks Izumo and her friend Paku by surprise and it's up to Rin and Shiemi to protect them.
episode 8: "now a certain man was sick..."
Still troubled after her friend Paku decides to leave the Exorcist lessons, Kamiki gets involved in a fight with Bon and the entire class end up punished by Yukio. Just after Yukio leaves for a mission, the students are attacked and cornered by the same ghoul from yesterday. While trying to help the others, Rin learns that the monster was sent by Igor Neuhaus, one of his teachers who wanted to confirm that he is the son of Satan.
episode 9: memories
Mephisto Pheles reveals to the students that the ghoul attack was actually part of the Exwire exam and how they dealt with the threat will count as part of their evaluation. Yukio confronts Neuhaus about his reasons to force Rin to use his demonic powers during the exam and he claims that all he did was under Mephisto's orders. However, it does not take much for Yukio to realize Neuhaus' real intentions.
episode 10: BLACK CAT
Father Shiro's familiar, Kuro, goes berserk after hearing that its master has died. Yukio is summoned to deal with it and Rin tags along with him despite his objections. While confronting the familiar, Rin hear Kuro's cries of sadness as he refuses to believe its master is dead and decides to face it by himself, looking to calm it down without hurting it.
episode 11: DEMON OF THE DEEP
Rin and his classmates Izumo and Shima are sent for their first mission as Exwires to a coast town aflicted by the presence of a Kraken. Izumo stumbles upon a boy whose father set out to face the Kraken six months before and is still missing. The boy plans to enact his revenge against the creature as he believes it killed his father, but he and the Exwires find out what really happened when they encounter it, much to their surprise.
episode 12: A GAME OF TAG
The Exwires are tasked to look for the ghost of a child that is haunting Mephisto Pheles' amusement park. Rin and Shiemi manage to find the ghost first, but Shiemi ends up chasing it by herself while Amaimon, a higher demon and another son of Satan, steals Rin's sword and forces Rin to fight with him. Meanwhile another exorcist comes to defend him, and she is revealed to be an old friend of Rin's father.
episode 13: PROOF
Shura Kirigakure, a high level Exorcist and former apprentice of Father Shiro, was acting as one of Rin's classmates and was tasked to investigate his connection with Satan. With orders to kill him if it were proven true, she is divided between fulfilling her obligations and following Shiro's request to look after Rin in his place if something should happen to him. Her doubts are cleared when she confronts Rin and finds that Shiro was actually raising him as a son instead of a weapon.
episode 14: A FUN CAMPING TRIP
The first semester has ended, signaling the start of summer vacation for True Cross Academy students. But there’s no rest in sight for Rin and the other Exwires: first they must take part in a 3-day drill to prepare them for actual combat, under the guise of a camping trip out in the forest.
EPISODE 15: AN ACT OF KINDNESS
Rin and his classmates succeed at the task gave to them by their teachers, but the camp is attacked by Amaimon, who holds Shiemi hostage to force Rin to fight. Having no option but to go full force against Amaimon, Rin is forced to reveal his secret by exposing his true form in front of his friends. With the other Esquires fleeing astonished after learning the truth about him, Rin easily overpowers Amaimon, but loses control of his flames and goes on a rampage. The Kurikara is cracked in the process.
EPISODE 16: THE WAGER
Shiemi manages to calm down Rin, who is captured by Arthur Augustus Angel, the current paladin, and taken to the True Cross Order Headquarters in the Vatican along Shura and Mephisto Pheles. Meanwhile, Rin's classmates become astonished when Yukio reveals to them that he and his brother are sons of Satan, but offer their help regardless, and they set for Kyoto looking for the descendant of the swordsmith who forged the Kurikara Sword to have it fixed. Before the Order's upper echelons, the "Grigori", Mephisto states that his reason for keeping Rin alive is to have him confront Satan, and just when he is trying to convince them to agree to his plan, a raging Amaimon breaks in, wanting to confront Rin once more...
EPISODE 17: TEMPTATION
Easily breaking through all defenses, Amaimon reaches the room where Rin is being held and Mephisto convinces the Grigori to agree with his plan. Using the reforged Kurikara brought by his classmates, Rin defeats Amaimon and the Grigori decides that he has six months to pass the Exorcist authorization exam, thus he begins a special training to learn to control his flames. Despite they helped Rin by having his sword fixed, some of his classmates still has some mixed feelings about him after learning of his connection with Satan, the most awkward of them being Konekomaru, who is approached by a dark presence attracted by his fear..
EPISODE 18: GALE
Rin and Kamiki are attacked by an unknown enemy and Mephisto Pheles orders the Exwires to check the barriers protecting the school looking for any breach. The enemy is revealed to be a demon who took advantage of Konekomaru's fears to infiltrate the Academy. Meanwhile, Shura locates a hidden door leading to a suspicious abandoned lab. When Konekomaru's heart goes to the demon, his friends rush to help him, and Rin manages to slay the monster and save his life. Ashamed of causing so much trouble, Konekomaru decides to leave the Academy and return home, but Rin and the rest of his friends reach him before he departs and convince him to stay.
EPISODE 19: AN ORDINARY DAY
The Exwires learn that Izumo's birthday is coming and they decide to make a surprise party to her. Despite all their efforts to make the party a secret, Izumo ends up figuring the truth and claims that it should also be dedicated to those whose birthday already passed too. In the end, the party becomes a celebration to everyone's friendship.
EPISODE 20: MASK
Rin & Yukio find that their friends from the monastery where they were raised were attacked by a masked person who covered their entire bodies with a seemingly indestructible spider web. While pursuing the culprit, whose objective is to attack anyone related to Satan to make him suffer, Yukio runs into Neuhaus who flees without further explanation. Despite having his sword sealed by the web, Rin insists to go after the masked one but is held back by Yukio and Shura, until he gets word that his friends Suguro, Renzo and Konekomaru are being attacked too and rushes to help them. Before being able to intervene, Mephisto Pheles is taken away by representatives of the high order who suspect him of directing unauthorized biological research. By managing to control his flames properly, Rin defeats the attacker, who flees thanks to Neuhaus who he reveal her to be his wife, and safely releases his friends.
EPISODE 21: THE SECRET GARDEN
Shiemi, in the Exorcist Shop, finds a woman lying unconscious in their garden. Meanwhile, Yukio meets Ernst Frederik Egin, who claims to be his grandfather, and reveals the truth about their Mother who was burnt alive by the Vatican proclaiming her to be a witch. He takes Yukio to a secret anti-demon Dragoon Laboratory and suggests Yukio to join him now that Shiro is dead and Mephisto has been arrested. Neuhaus is being interrogated in the Academy's Great Cell by Shura where he tells everyone (including Rin) that his wife, (Masked 'Man') Michelle, is nothing but a corpse with a certain demon in her body, intending to kill Satan but she was not resurrected from death by him. Rin finds out the woman in the garden to be Neuhaus' wife but Shiemi stops him from killing her. Paladin Angel appears in the garden to kill the demon but confronts Rin. Later, Michelle dies protecting Rin from the Order.
EPISODE 22: DEMON HUNTING
Ernst takes over as the True Cross' newest leader and appoints Yukio as the new Paladin. Armed with special weapons that drain the blood of the demons killed with them, the exorcists take part in a plan to erase all demons from Assiah. Rin and his friends start questioning why the order decided to take such extreme measures, but Yukio is determined to accomplish his task as Ernst claims that it is all part of their plan to destroy Gehenna, and with the Demon world vanquished, both he and his brother would become completely human again. However, when the time comes to open the gate, Yukio learns that Ernst intends to use Rin's blood as well and when his classmates come to help them, they find that Yukio's demonic powers have been awakened.
EPISODE 23: TRUTH
By using the blood of the Okumura brothers, Ernst opens a massive gate to Gehenna and drops a weapon of mass destruction in an attempt to annihilate it. But his plan fails and backfires when Satan appears and reveals to Yukio the truth behind his and Rin's origins before taking possession of his body.
EPISODE 24: SATAN'S SPAWN
Rin and his companions manage to flee from Satan who starts destroying the True Cross Academy with his flames. Knowing that Satan still stands beside the Gate because Rin has the power to destroy it, Shura comes up with a plan to distract him to give Rin an opening to do it, while the other students help evacuate the school. Their plan fails when Shiemi intervenes trying to persuade Yukio with no success, but Rin manages to have his brother regain consciousness and expel Satan from his body. However, the gate keeps getting stronger and it will not be long before Gehenna and Assiah merge into one single realm.
EPISODE 25: STOP, TIME
Rin, Yukio, Shura and Arthur join forces to bring down the Gehenna Gate with no success. Meanwhile, demons keep coming through it and giving a hard time to the other Exorcists until the Exwires come with a plan to open a gate to Vatican, where is already daytime, and reflect the sunlight there to the Academy where is nighttime to weaken the monsters protecting the Gehenna Gate. Rin and Yukio manage to seize this opportunity and when both unlock their demonic powers together, they fly through the gate and destroy it. One month later, things are back to normal at the Academy and the Okumura twins pay a visit to their mother's grave before returning to their duties as Exorcists.
OVA: KURO's Trip Away From HomE
After being teased by Rin and lectured by Yukio, Kuro runs away from home to find someone else to live with, but then realizes when Rin finds him again that Rin is the only friend for him.
BLUE EXORCIST MOVIE 1:
A carnival held once every eleven years is coming. Inside the boisterous True Cross Academy, emotion is running high. Exorcist are creating barriers seriously to prevent demons from attacking. Meanwhile, Rin is exterminating the out of control Phantom Train when he meets a young demon in form of a boy on the way of the mission.