Izumo is a young woman of slender figure and petite appearance. She has fair skin with a rosy tint, a round face with fine features, big dark red eyes with cat-like shape and small oval shaped eyebrows, and long dark purple hair which she usually keeps in a twintails or a ponytail hairstyle. Her eyebrows are the reason why Rin Okumura calls her by the nickname polkabrows. Izumo also has been called "cute" by Yohei.
Her outfit is primarily the school uniform, whch consist on a white colored shirt with the red-black school tie is tied with a large bow, tight white thigh highs, a short pink skirt with a black belt, and black shoes. It is revealed that she wears a push up bra to avoid looking flat-chested. When performing ritual dances, Izumo wears a priestess outfit with a fox mask, flower-printed haori coat and two fans.
According to herself, Izumo is someone with a bad attitude who hates to lose, being very cold, blunt and condescending towards those around her except for her very close ones. Like Ryuji, she is almost always frowning, one of the few times she isn't is when she is smiling smugly at someone's expense. Though not cruel, Izumo is somewhat manipulative, taking advantage of Shiemi's naivety when asked to be her friend by essentially making her her servant.
Despite her cold nature and initially acting arrogant towards others' goals, Izumo occasionally shows true kindness and consideration towards others, even though she doesn't appear that way. This causes her to encourage her friends when they are frustrated, as well as finally recognizing their different priorities. Despite being an Exorcist, Izumo is open and even curious to Demons, noticing their differences and respecting them as she eventually realizes all things/beings complement each other. This made her the first Exwire to accept Rin after learning that he was the son of Satan, as well as scolding the others for their poor treatment of him.
Stemming from the isolation she suffered as a child for being able to see demons and her family's separation by those she asked for help, Izumo grew up distrustful of other people, convincing herself that she couldn't rely on anyone and kept her distance from everyone in her class except Paku, even saying she would rather die than be friends with them. After the group start working together though, Izumo starts to open up to them more, even putting herself in danger for her now friends and feeling down the few times she couldn't help them.
At first, Izumo easily lost confidence when she saw her friends in distress, even temporarily losing control of her familiars after witnessing Paku get badly injured by a Ghoul. Overtime, Izumo has slowly learned to stay calm and composed during battles.
Izumo is very self-conscious about her appearance: She hates the way she gets a crease between her eyebrows when reading, studying, or thinking hard. Futhermore, after seeing Shura and Shiemi's large bare breasts and figures, Izumo says while crying in a comedic way how poorly endowed she is and lacking in many places.
Izumo was born in Inari, a sacred land that had been under the protection of the Byakko for generations. She born into the Kamiki clan, a family of mediums whose purpose was to quell the powerful Nine-Tailed Fox Spirit who was sealed within the Life-Taking Stone, which had the power to revive the dead and kill any who approached it. Because her family had interbred with the Byakko, Izumo was born with demonic blood, but over the centuries this bloodline had become so thin that there was now almost no difference between her and a regular human.
Izumo lived peacefully in the Inari shrine with her younger sister Tsukumo and their mother cheerful Tamamo, the head priestess of the Inari Shrine at the time who was charged with appeasing the Nine-Tailed Fox Spirit through a dance known as the Divine Summoning. Though still "dating" their mother once in a while, their father left the siblings at a young age to be raised by her mother's fox familiars.
Because of her Demon blood, Izumo was able to see Demons while other children couldn't. This caused her to be isolated for most of her childhood as the rest of the children considered her a "freak", growing up with no other friends with the exception of Paku. This caused Izumo to be distrustful of other people, convincing herself that she couldn't rely on anyone.
One day when Izumo was attempting to imitate the Divine Summoning, she was approached by a strange short man named Michael Gedōin, a woman named Maria, and two other men dressed in black. They said that they were from an organization known as the Illuminati, also revealing that she was able to see the Byakko, much to Izumo's shock. After Maria declared they came to research the Life-Taking Stone and asking to talk about it, Izumo was suspicious of the group and refused, but Maria gave her a card with her name and number and said if anything happens to call them before leaving.
Soon after, Izumo began to notice a drastic change in her mother's behavior towards her children and work, causing her to grow concerned. One night, her suspicions were proven correct when she discovered her mother had been possessed by the Nine-Tailed Fox Spirit, who then tried to kill Izumo and Tsukumo. The Byakko protected the sisters, giving them a chance to flee. A hurt and desperate Izumo then contacted Maria, indirectly causing the possessed Tamamo's capture while her children were taken into the Illuminati's custody under the false pretense of protection, unbeknownst to them their mother was being brutally tortured and experimented on.
After ten days in captivity, Izumo found her younger sister missing, only to be told by a remorseful Maria that she had put Tsukumo up for adoption in order to protect her. She then told Izumo to wait for her to come back so they could escape together, but she refused to trust Maria and tried to escape on her own. She was quickly caught and Maria was mercilessly executed in front of the child for her treachery. After witnessing the Illuminati's cruelty, Izumo agreed to do whatever they asked of her as long as they left Tsukumo alone.
After brief appearances, Izumo is officially introduced when Shiemi wants to befriend her and Paku. When Shiemi tries to talk to her and falls to the ground, Kamiki just comes out and calls her an "idiot". During class on Magic Circle with Igor, the class is explained the basic requirements to become a Tamer and are then welcome to find out if they have what it takes. Izumo readily invokes both Miketsu and Ukemochi at once, earning praise from her teacher and classmates, who were without this natural talent. Izumo also became shocked to see that Shiemi also has the talent to be a Tamer then summon a Greenman.
Shiemi again chasing her to try to be her friend, Izumo became annoyed, but accepted after a while believing she could make Shiemi her slave. To prepare students for the Exwire-test, Yukio organizes a camp to prepare them in their dorm, similar to an abandoned building. There, Izumo decides to bathe with Paku, again being followed by Shiemi, but Izumo does not allow her entry, claiming that if she was her friend, she would understand. As always, Shiemi respected, but this behavior disappointed her friend Paku. When Paku reveals she was quitting the course of exorcists, for failing to follow the lessons, the two are suddenly attacked by a Ghoul.
While Paku has been seriously injured by the demon, Izumo summons her familiars to save them. Unfortunately, instead of listening to her orders, the Byakko turn against her because of her mixed feelings. Rin Okumura arrives in time to protect her and tells her to tear the paper contract, making her familiars disappear. Shiemi came soon after and told Rin to keep the Ghoul busy while she took care of Paku's injuries.
With the help of Yukio and the others, the Ghoul fled and Rin finds Izumo hiding and crying because she felt useless by not being able to protect Paku. Rin gives her his shirt and tells her to hurry up and go. She later thanks Rin for saving both her and Paku.
The next day, Izumo had problems in class and got in a violent discussion with Ryuji about their goals as Exorcists. This made all the Exwires got punished with Bariyons. After getting attacked by a group of Ghouls hidden in the building, Izumo recovers her strong-willed nature and uses her familiars to defeat them along with her classmates, inspired when she realized Rin, Ryuji and Shiemi's own resolves.
Izumo and Shiemi drew the magic circle while watching the boys build their tents. Shiemi, being somewhat anti-social in most of her life, called the boys "strangers." Izumo says Shiemi is only strange in this, remembering when Shiemi and Paku went to her despite how Izumo scolded her. As Shura is resting in a tree, she is surprised at how quickly the girls are able to do the drawing. Shura is called out on her laziness. Completing the painting, the girls start cooking dinner. Izumo, who is not a good cook, like Shiemi, is replaced by Rin, who makes a feast for all and the group was surprised with the culinary skills of Rin.
When the test to capture Stone Lanterns was about to begin, Izumo commented that she liked the idea of having only three lanterns, and therefore three places for them, making the whole group rivals of eachother. When they began the exam, she called Mike and Uke to help. When Rin, Shiemi, Ryuji, Renzo and Konekomaru returned to the camp, they found that Izumo and Nemu Takara had already taken their torches, and Izumo cited that Takara was the first to succeed.
When Amaimon attacks the camp of Exwires, Izumo shows fear, knowing that Amaimon is one of the Eight Demon Kings and is bathed with holy water along with the other students (except Rin for being half-demon). Shura also ordered them not to leave the inside of the protective barrier, but after the start of the showdown between Rin and Amaimon, Ryuji becomes mad and also joins the fray, followed by Renzo and Konekomaru. Izumo uses words to make them stop, but they ignore her and continue, causing her to call them idiots in your head.
On the trip to Kyoto, Izumo sits next to Rin at the train to the Shinkansen. After Shura explains their mission in Kyoto, Rin asks Izumo if she was afraid of him for being the son of Satan. Izumo replies that there are many people in this world related to demons, and that the problem was that the Order is deciding if he would convenient or not, which could be dangerous for him now. While saying she isn't afraid of him, Izumo berates him for making something small into a storm in the teacup.
As Rin claims that Izumo is a friendly person, causing her to become embarrassed. When he also called her "eyebrows", she demanded that he called her by her name. So Rin thanks her with her name without prefixes (which in Japan indicates greater intimacy with the referred person), leaving her blushing but asking him not to call her only by name. Izumo then becomes more aggressive in their argument, calling people fighting the good of others but who flee in difficult times (referring to how the others were treating Rin). Ryuji then gets angry and raises his voice against her, cursing her then.
Thereafter, Exwires are punished by the angry Shura with Bariyons again because of Ryuji and Izumo. When the two start bickering again, Renzo notices movement out of his eye corner. Shiemi is attacked by an older Bariyon. Attempting to help Shiemi, Rin causes a fire with his flames, forcing Izumo to use holy wine to put the flames out.
Like most of her classmates, Izumo helps to fight against the Impure King's destructions. At some point, she and Shiemi helped to recover Ryuji's father before being attacked again. Later, most of the Exorcists are showed happy for Rin's victory against the Impure King.
Izumo is seen with the group when they are on the beach trying to have fun and relax.
Before the festival, Izumo rejected her classmates' invitationas. In a conversation with Rin, Izumo revealed she doesn't trust anyone. However, she later remembers Paku's word about being honest with herself.
After finally going to the festival, Izumo was stabbed and captured by Shima, revealed to be a member of the Illuminati.
After having a nightmare about her past, Izumo wakes up in a room, completely alone. Soon after, several members of the Illuminati, including Gedōin and Renzo, arrive to meet her. Renzo greets her, and informs her that she is now in the Illuminati headquarters. Then, to her shock, her mother is wheeled into the room. As Tamamo weakly pleads with Izumo to save her, Gedōin says that Tamamo's body is no longer useful for experiments, and thus the Nine-Tailed Fox must be transferred to Izumo's body. All the Illuminati then leave, save Renzo, who cheerily tries to start a conversation with her. However, she slaps him, angrily stating that she thought he was like the others. Renzo, unfettered by her backlash, replies that he always thought she was like him, and leaves. Izumo looks at her sister's doll, thinking about how she is like Renzo, a traitor.
Later, Izumo is brought to a testing room by a group of Illuminati soldiers. Along the way, she begs them to spare her and talks about how she might be injured or hurt. As they are about to perform the experiment on her, she manages to escape and summon Mike and Uke, who reveal that her friends are here to save her. They are soon stopped by Renzo, who easily defeats the Byakko, much to Izumo's dismay.
Wearing handcuffs and a ceremonial dress, Izumo is then led through the area where her classmates were fighting against the chimera zombies. Rin manages to beat back Renzo and get to the platform, offering to help her get free. Remembering her past and believing how it was wrong to rely on others, Izumo shouts at him to get out of the way, and leaves him. She is then forced to invoke the nine-tails from her mother. Although she believes she is successful by the end of the dance, Izumo soon becomes overwhelmed by the nine-tails. As she struggles to regain control, she remembers all of her classmates, and how she loved them. Rin then breaks into the room with a massive explosion, and goes over to help her. Izumo asks him why he is risking his life for her, and he retorts that he couldn't let her die, as he attempts to carry her and her mother out of the room.
Izumo is soon completely possessed by the nine-tails, and attacks the others. Fortunately, Tamamo manages to put the nine-tails into her control, at the cost of severely wounding her. As Tamamo lays dying, Izumo asks her why she would do this. Tamamo then replies that is because Izumo is her little treasure, making Izumo cry and ask if she was wrong. Tamamo answers it's alright, because everyone is by her side, including Tsukumo, Mike and Uke.
After Gedōin transforms into a Necrophager her familiars unexpectedly appear. With her familiars, Izumo manages to defeat Gedōin while their classmates and teacher fight against the Zombies. Everyone is then rescued by the Kyoto Branch of the True Cross Order.
Ryuji and Izumo are seen together talking. She and her fellow classmates are listing to what Mephisto is talking about moving the Exorcist Exam eat the start of the new year. The exwires are watching Lewin Light and they amazed.
With her familiars' help, Izumo was able to pass the Exorcist Exam alone, while everyone else (except for Nemu Takara, who also went by unknown methods alone) had to join as a team to pass.
Powers & Abilities
Spectral Awareness: Having born with Demon blood, Izumo has the ability to see Demons.
Demonic Possesion: Being daughter of the chief priestess of the Inari Shrine, Izumo has the ability to perform ritualistic dances to appease demons and contain them within herself.
- Divine Summoning (神降ろし Kamioroshi) (Formerly): This dance allows the performer to appease and assimilate the Nine-Tailed Fox Spirit, resides within the Life-Taking Stone, having the power to kill anything that neared and revived anything dead.
Izumo is a natural skilled Tamer, which she believes that is related to her distant relation to the Byakko. She has exceptional spiritual strength, even when she is severely wounded, as this is the key to controlling familiars. Her knowledge and resourceful use of their skills is also impressive, allowing her to use her familiars for offensive and supporting purposes. Izumo often summons Mike and Uke, two chibi-like foxes whom she calls her Brothers. They are very strong despite their size, being able to carrying the Stone Lantern in training camp.
- Purification of Spirits (
靈の 祓いTamayura no Harai): Izumo can send Mike and Uke forward, asking them to biting the target at very high speeds, to the point of forming a furious hurricane-like circle. This is especially useful when dealing with extremely durable demon-types.
- Great Sacred Wine of Heavens (
天の 大御酒Ama no Ōmiki): Izumo can ask Ukemochi to transform into a bowl and pour holy wine with similar properties to Holy Water. It is strong enough to put out Rin's Flames of Satan.
- Purification for Repose (
鎮魂の 祓いMitama Shizume no Harai): By chanting, Izumo can summon a flowered headdress with fox ears, a big fan, and divine bells, all while asking Ukemochi and Miketsu to transform into their humanoid forms. Then, she can send Mike carrying a bow to swiftly stabbing the target and Uke wielding a bow to fire an arrow made of light which strikes the opponent like lightning. This is usually directed to "monstrous" demon-types weak to Spirit or Light attribute abilities.
- Her name contains the kanji for "sacred tree" (神木 kamiki) and "emerging cloud" (出雲 izumo).
- In the first popularity poll, Izumo ranked sixth, with a total of 818 votes. 
- Her favorite words are "Evening calm".
- Her pastimes and talents are: collecting clothes and trinkets, studying, reading girls' manga & novels, and going shopping.
- In Chapter 82, it is revealed Izumo is an intense fan of a popular, in-universe manga series "Kimi-Monogatari".
- Her favorite music genres are: Pop, Rock and Japanese.
- Her average bath time is 50 minutes.
- In the special chapter "Kuro no Ie de" and the 7th anime omake, Izumo has shown a great love of cats: Whenever she encounters Kuro alone, she blushes and fusses over him, also feeding, petting, and attempting to play with him.
- (While Summoning) "
稲荷神に 恐み 恐み 白す 為す 所の 願いとして 成就せずということなし!" "I genuinely call the Deities of Harvest. Follow my wishes, leave none unfulfilled!"
- (To Shiemi Moriyama) "Hold it. Friends help each other right? You should understand."
- (To Rin Okumura) "There are tons of people related to Demons by blood, most of them exorcists. The problem is you are Satan's son, so the Order hasn't ordered kill you yet because it doesn't know if letting the son of Satan become a member will be a boon or a bane either."
- (To Rin about her fellow Exwires) "I... I just really hate cowards who say things like «I'll defeat Satan» or that we're «friends»! ... When all they know is to run away at the most crucial of times... After spouting some pretty words!!"
- (To herself about her past) "This has become like this... Because I relied on people... I won't ever again... Rely on anyone... Not trust in anyone... All of you, I'll slit your throats while you sleep."
- (To herself about her fellow Exwires) "Why did I get angry? We have completely different ways of thinking. They're all bastards who only do whatever they want. Just being with them makes me furious... Yet, when these guys are fighting... I always hated it because... I truly loved them so much. And yet... To notice it only now, it is too ."
- ↑ Ao no Exorcist Manga: Chapter 60, Pages 7-14
- ↑ Ao no Exorcist Manga: Chapter 6, Pages 40-41
- ↑ Ao no Exorcist Manga: Chapter 17, Page 32
- ↑ Ao no Exorcist Manga:Chapter 62, Pages 25-35
- ↑ Ao no Exorcist Manga: Chapter 53, pages 2-3
- ↑ Ao no Exorcist Manga: Chapter 60, Pages 24-28