Irina Shidou is one of the many female protagonists of High School DxD and the childhood friend of Issei Hyoudou. She is a third-year high school student at Kuoh Academy in Class 3-B and is a devout Christian who, even after learning of God's death, still follows his teachings. She later gets reincarnated as an Angel by the Archangel Michael through one of the Brave Saints, her ranking among his peerage being "Ace".
Irina is a beautiful young woman with chestnut hair and violet eyes. Her hair is usually tied into twintails, each held with a blue scrunchy, but on some occasions, she lets her hair down. Her body measurements are [B87-W59-H89 cm] [B34-W23-H35 in]; height is 164 cm (5 feet 4 inches) and body weight is [56 kg].
She wears the standard Church battle attire, same as Xenovia's with some slight differences. After transferring to Kuoh Academy and moving into the Hyoudou Residence, she starts wearing the Kuoh Academy girls' school uniform, with black short shorts under her skirt and an addition of white sneakers with blue accents.
Following her Angelization by Michael, she wears a red "A" printed on her right hand, symbolizing her position as Michael's Ace. Irina also gained white Angel wings and a halo, as of Volume 17, has a total of 4 wings.
Irina is a cheerful, carefree, upbeat, and enthusiastic person. She is also shown to be cooperative and open-minded to others as she is seen with Arthur discussing Excalibur Ruler, although he stated that the location is secret.
She's a devout Christian, showing great respect for God's teachings. During her first appearance, she was very harsh towards those whom she perceived as an opposition to her religion. This was demonstrated by how she and Xenovia treated Asia when they first met, as well as her reaction to Xenovia becoming a Devil. The death of God of the Bible was a great shock for Irina, yet she still believes in his teachings and transferred her belief to Michael who is the current "God". Irina later became great friends with Asia and the rest of the Occult Research Club members, even joining the ORC herself.
She began experiencing "impure thoughts" around Issei; her Angel wings start to flicker from white to black indicating that she is about to "fall" from her status as a true Angel to a Fallen Angel if she gives in to her desires. She is shown to be very sensitive to and annoyed about being called "self-proclaiming". After kissing Issei, she becomes bolder in her relationship with him, as she becomes slightly less concerned about "falling" in order to show her love for him.
Her family lineage is related to the church, implied to be the Protestant church , and possessing a currently unidentified Holy Sword. She is Issei's childhood friend who was under the impression that she was a boy due appearing quite tomboyish and were close friends who used to play together. At some point, she kissed him while he was sleeping at her house. She later left Japan and went to England with her family due to her father's job where she trained to become an exorcist.
At some point in time, she crossed blades with a knight from Riser Phenex's Peerage named Karlamine. She was eventually partnered with Xenovia three years prior to the series, where they undertook a mission to slay the stray vampire from the House of Manthar.
Irina first appears in Volume 3 in a picture with Issei from when the two were playing together. Her first appearance in person was alongside Xenovia when they came to Kuoh Town under the orders of the Church to retrieve the stolen Excalibur's from Kokabiel and his men. They a small paid a visit to her childhood friend Issei's home, much to his surprise to find she's was actually a girl. The next day, Xenovia and Irina arrive at the Occult Research Club both to inform Rias and her peerage about their about their mission and to issue them a warning to not to interfere with their work. Just before they leave they noticed Asia, the previously known "Holy Maiden" before her excommunication as a "Witch" who was then berated by Xenovia for becoming a Devil. Issei intervenes seeing her going as far as to attempt an exorcism on Asia and challenges the girls to a fight, with Kiba joining his lead. Outside Irina and Xenovia dual Issei and Kiba respectively, Koneko warns Irina of Issei's ability to rip her clothes off which she was surprised to see Issei had become a huge pervert during the time they haven't seen each other. Irina was able TO narrowly dodge every attempt Issei pulled to use his spell. The victory is hers in the end when Irina delivered a slight cut of her Holy Sword to Issei, The two Exorcists, then leave the school area to continue their search.
Both girls are next seen begin for money due to Irina having already spent all their wages, they were reached out by Issei, Saji and Koneko who wanted to help find the Excalibur swords but in exchange if they destroy them from Kiba's sake, they agreed and formed an alliance, that night Irina and Xenovia split up from them to cover more ground. She was defeated by Kokabiel while infiltrating his base and was left in a near death state, but was saved by Rias' group and recovered due to Asia's healing. At the end of the volume after Kokabiel's defeat, Irina takes all the stolen Excalibur fragments back to the church, disappointed at the fact that Xenovia had become a Devil.
She reappears in Volume 6, after being reincarnated as an Angel by Michael as his Ace, she was sent to Kuoh Town as Heaven's representative and transferred into the same class as Issei, Asia, and Xenovia. Prior she came to learn the truth of the death of God from the Bible and understand the reason Xenovia leaving, thus lessening her malice against her as well as Asia. She then moved into the Hyoudou Residence. When Issei entered his Juggernaut Drive, Irina was the one that brought the Oppai Dragon Song to the battlefield to change him back.
In Volume 7, Azazel showed Irina and the rest a tokusatsu of the Oppai Dragon show based off of Issei that's currently popular with kids. Irina then energetically boast how proud she is that her childhood friend is now famous and reminisced how they used to play heroes as kids. Issei complimented how Irina grew from a tomboy to a bishoujo which embarrassed her as she tried to resist his seducing comments from causing her to fall as her wings flickered. Azazel further encouraged it, welcoming if she falls, causing her to pray to Michael to remain faithful. She and all the other girls glared at Issei and Akeno whom the latter remained him of the date he promised.
At school during lunch, as the school trip to Kyoto approaches, Irina and her group agreed to pair up with the perverted trio as most of the girls wanted to be close with Issei, the girls comments caused Matsuda and Motohama raging at Issei's popularity. After school all the club members gathered to plan for the activity for the school festival. Soon after Irina and the rest made their way to an abandoned factory, where they met with members of the Khaos Brigades Hero Faction who were causing trouble around town, Irina, Koneko and Gasper took the position of middleguards to fight against the Hero Faction. After the battle Irina suspected that they were only used as an experiment to grow stronger by achieving Balance Breaker from fighting them. Upon returning to their club room, Akeno expressed he delight as tomorrow was her date with Issei, which caused all the girls to direct their killing intent towards Issei.
When Odin arrived in town and informed Azazel and the rest of his visit to meet with the Japanese Gods as well as problems at home due to a certain "troublesome lad" and about the increasing numbers of Balance Breaker users in the Khaos Brigade. Over the next several days, Irina and rest accompanied Odin and his bodyguards as he indulges himself in various places around Japan. They are then attacked by Loki who was against Odin joining with other factions, everyone battled the Evil God while protecting Odin, Loki then brought out his son Fenrir to assist him. They had trouble beating them especially since the giant wolf pierced through Issei's armor, they were then save by the arrival of Vali and his team, which led Loki and Fenrir to retreat. After Issei recovered from his injuries, Vali proposed a they join forces to defeat Loki. Irina and the Gremory group had a meeting in the spacious hall in the Hyoudou Residences basement with Azazel, Baraqiel, the Sitri group and the Vali team, whose caused an awkward tension as they questioned their true motives. Vali explained that they simply want to defeat Loki and Fenrir even if they didn't cooperated. As they come to some sort of accords, Azazel plans on asking Midgardsormr for countermeasures to use against their opponents. As the ORC, Student Council and Vali Team are left on stand-by, Irina was discussing with Arthur who had the last Excalibur with Kiba and Xenovia listening in on them while on alert.
On the day Odin has his meeting with the Japanese Gods everyone was on guard when Loki commenced his assault with his army that consisted of Fenrir, Sköll, Hati Hróðvitnisson and cloned applicants of the Midgardsormr. The battle dragged on as Irina protected Xenovia while sprinkling Pheonix Tears to heal her, just when things were at their worst, they were able to win with the combined attack of Baraqiel and Akeno's Hly Lighting and Issei finishing off Loki with the Mjolnir.
In Volume 9, Irina goes to Kyoto along with the second-year students of Kuoh Academy, her group consisted of Asia, Xenovia and Kiryuu, whom they paired up with the perverted trios group touring around Kyoto. That night, Irina and Xenovia sneak into Issei's room where they find him and Asia kissing in the closet who faints after being exposed. They also enter the closet with them where Xenovia once again attempts to have Issei's child and tries to convince Irina to do the same for the purpose of strengthening Heaven's forces, although she hesitates due to the risk of "falling". Irina steps back as Xenovia goes through with it until Asia wakes up and interferes also wanting to bear his children. Issei tries to distance himself but bumps his head and lands his face on Irina's breasts, twice before passing out.
She and the rest of the Occult Research Club then encountered Khaos Brigade's Hero Faction who kidnapped the leader of the Youkais, Yasaka, in an attempt to summon the Great Red. She then fought against Jeanne but was defeated.
In Volume 10, during the match between Issei and Sairarorg, Irina tearfully talks about Issei's kindness and hard work to the children in the audience to encourage him, showing her feelings of love towards Issei.
In Volume 11, she accompanies the Gremory Team to the Underworld, where they were attacked by Cao Cao and Georg, losing to the two. She was later handed the Excalibur Ruler by Le Fay Pendragon to fix the broken Ex-Durandal after her brother abandoned the sword.
In Volume 12, Irina, Xenovia, and Akeno face Jeanne in a three-on-one match using a prototype Holy Demonic Sword created by Heaven. While they are able to corner Jeanne, Jeanne manages to take a child as a hostage to prevent them from further attacking her. Luckily, Kiba manages to save the child and Issei defeats Jeanne. After the return of Issei and the defeat of Cao Cao, Irina says she wants to go on a date with Issei, as does the rest of the girls of the Occult Research Club.
In Volume 14, Irina took part in the rescue mission of the Occult Research Club's kidnapped first-years and helps battle the Stray Magicians who took them.
Irina, along with the rest of the Occult Research Club members, Bennia, and Loup Garou, went to Romania in Volume 16 to aid Rias and Yuuto, who were held captive in Tepes castle. She then participated in the attempt to stop the extraction of the Longinus, Sephiroth Graal, from Valerie Tepes and rescue her; fighting the enhanced vampires and Grendel along the way. Irina later teamed up with Xenovia to defeat the mass-produced Evil Dragons that were rampaging in the Carmilla's castle town. After returning from Romania, she participated in the meeting for the formation of D×D.
In Volume 17, Irina, along with the rest of the Occult Research Club members, went to the Underworld and participated in the experience day for the school Sona Sitri built located at Auros in the Agares territory. While doing the respective activities assigned to them, Qlippoth managed to surround both Auros and Agreas inside a barrier and announced their intent to attack after a certain period of time. Before the time was up, they reconfirmed their plan and Irina ended up pairing with Hanakai of the Sitri group and fought with the mass-produced Evil Dragons. After the fights were settled and Xenovia's plan to become Student President was revealed, Irina told Issei that the promised season is near.
In Volume 18, Irina went to Heaven with the Occult Research Club. Upon their return, they're visited by Irina's father, Touji Shidou, to organize the Christmas project and also give his daughter a magic doorknob that leads to an Interdimensional room for her to mate with Issei without falling which embarrasses her. Irina later goes shopping with Toiji, Issei, Xenovia, and Asia only to be attacked by Masaomi Yaegaki wielding the Holy Sword Ame no Murakumo no Tsurugi infused with half of Yamata no Orochi which he manages to impale and poison her father much to her horror. Touji is now hospitalized and gives Irina the Holy Sword, Hauterclere, and was later transferred to Heaven to be cured.
When Qlippoth attacked Heaven, Irina rushed to save her dad from Masaomi again. She manages to defeat him with the use of her new sword, Hauteclere, to purify Masaoni's sword with the help of Issei's Ascalon and Xenovia's Ex-Durandal, thus ridding him of the Dragon's influence but was soon killed by Rizevim. Later Issei and Irina were out shopping. She kisses him but tells Issei that they've already kissed before as kids. They then meet up with Azazel in a Santa Claus outfit and recall their childhood promise to attack Santa; so with the help of Ophis, they charged at Azazel.
In the Extra Life of DX.1, During the Rating Game rematch between Rias and Riser, Irina took the place as Riser's substitute Bishop due to being an old acquaintance of his Knight Kariamine. Irina faced off against Xenovia, their fight continued even after the game ended.
In Volume 19, Irina participates in the fight against the exorcists that rebelled against the Church. Along with Yuuto, she Initially joined with Sona's Peerage, Dulio and Griselda to fight against the Exorcists lead by Ewald Cristaldi who they had trouble fighting due to wielding a replica of Excalibur. However, they manage to defeat Ewald with the combined efforts of Yuuto and having her abilities enhanced by Griselda with Dulio delivering the finishing blow. Irina and Yuuto then left to join the other battlefield against the Exorcist lead by Vasco Strada, who wielded a replica of Durandal and also had difficulty to defeat. Suddenly the whole group had to deal with Walburga, while her army of Evil Dragons were immobilized, she activates her Balance Breaker that had control over the other half of Yamata no Orochi. However, they were able to defeat her, as well as destroy the Evil Dragons soul.
In Volume 20, Irina's school are having a career consultation for everyone in her year, she is surprised to find that her father has come back to Japan from England for his daughter's interview with her teacher. Irina scolds him for prioritized her over his work, Touji explains that he originally has to attend an errand while in Japan and took this opportunity to see his "Angel". He then asks Issei if he and Irina have already used the Interdimensional Room, which causes Irina to outburst at her father in embarrassment.
Along with other members of D×D, they met with Ajuka who had recovered Ravel who had been missing, Ajuka then tells them about a shocking truth about the King Pieces, an invention of his he kept secret from the public. Later D×D were able to locate the stolen city Agreas where began an invasion on Qlippoth's hideout. Irina and the Gremory Team face off against Niðhöggr the Evil Dragon that kidnapped Issei's parents, they had difficulty defeating him due to him possessing several Pheonix Tears vials until Crom Cruach shows up and starts beating Niðhöggr senselessly. Irina assisted Issei and Asia to find their parents by clearing a path through an army of Evil Dragons along with Kiba and Xenovia.
In Volume 21, days after Trihexa had been unleashed and wrecking havoc onto the world and various other realms of different mythologies, Irina and the rest of her friends joined an army on an island on the coastal waters of Japan to battle Qlippoths army of Evil Dragons, fake Scale Mails and one of Trihexas bodies controlled by Apophis.
In Volume 22, Irina arrived together with Xenovia and Asia and witness Rias and Akeno seducing Issei and with Irina showing amazement that a room similar to her own has been developed so soon. During school, after everyone had finished their end of semester test, they were all in the club room preparing it for the new year while reminiscing over the past, Irina revealed that she plans to go to the collage division but has yet to decide whether to work for a Church affiliation or something else for as long as she is able to gather at the emergency meetings. She also states that she wants to start bakery with Xenovia exposing that her second option of becoming a bride which embarrassed Irina. After school, Irina goes fishing with the Occult Research Club, The Vali Team, and Issei's parents with Irina challenging Xenovia to see who can catch the most fish. On the graduation day, Irina scolded Issei, Rias, and Akeno for keeping a secret of going to the club with them. After the graduation ceremony, Irina then revealed to everyone that she has declined to join the Angel's team in order to join Issei's team for the Rating Game World Tournament and happily accepted Issei's invitation. Irina watched as Issei proposed to Rias and smiles of their joyful union.
Next weekend, the ORC group, Vali's team and Issei's parents went on a fishing trip on an inhabited island owned by someone related to them to them. Irina challenged Xenovia to a fishing competition to see who can catch the most fishes which she accepted.
Red Dragon Emperor of the Blazing Truth × White Dragon Emperor of the Morning Star: The True Dragon(s) of the Kuoh Academy
Irina arrived together with Issei and her team members through Ryuuteimaru at the Azazel Cup. After ten days, Irina and her team watched as they receive bad ratings at their matches. Theit next was against Baraqiel, Irina defeated a Bishop and a Pawn. Irina and Xenovia later take on Baraqiel with Issei arrived at the scene. Irina then used her Hauteclere to perform high-speed slashes and with opponent unable to counter it. After the match, Irina watches as Rias and Akeno bicker over Issei and agreed to Xenovia's suggestion to get closer to Issei and have him take responsibility.
In Volume 23, Irina and her peers had already enrolled into Kuoh Academy as third years. Her team had already won several matches at this point but noticed that despite this she questioned the look of gloom on Xenovia had on her face, she revealed the reason for it is that usually this is around when something bad eventually happens. Rossweisse who was now their homeroom teacher announced to everyone of the Ball Tournament taking place in a few days time, which Xenovia declared to the others the she and her Student Council team will not lose even to them, prompting Irina to declare the same back at her.
Both teams set up a meeting with each other at the Hyoudou Residence as to get its members acquainted with each other, while Ravel said that this meeting will be an opportunity for both parties to gather each other’s intelligence, but Irina retorted believing that it will simply be a greeting with some Angels and won’t lead to anything drastic. Upon their arrival Irina extended her hand to introduce us to the members of Dulio's team. When it came to Nero's introduction, Irina explained that Heaven took a note from Issie's Oppai Dragon franchise and produced a hero for their believers, which Nero volunteered for the role. Irina then brought a small dining car with cake and tea for everyone and nearly let slip of Elmenhilde assistance in baking until Ravel interrupted her as to not leak too much information to their opponents. Later that night, when Issei was in bed with Ravel and Asia, the two swordswoman Xenovia and Irina switched off the lights and then came running in like ninjas to also cling to him for staring too much at Mirana's breasts and attempted to show off theirs to him while explained they tried different methods in making them bigger, the five of them eventually slept next to him on his bed.
Needing more fighting members Issei and Ravel sought after Ouryuu to join them. Issei's team did their training in an underground space within the Gremory territory that had been previously handed to them, during which she and Xenovia were doing mock sword battles. While discussing how difficult Dulio's team supervisor Rudiger may be, they were soon greeted by the surprised visit from Roygun Belphegor who was sent their by Ravel's brother; Ruval for a job, she provided them with documented game data regarding Rudiger that could be useful in their upcoming match. Although Irina and the other girls were appalled when Roygun began flirting with Issei who didn't seem to mind, they all gave him cold stares as Roygun left giving him a flirting wink.
Sometime later, both teams have their match at the Ajuka Stadium in the Astaroth territory with the game they'll be playing called Rampage Ball where both teams must find the goals that appear all over the game field and then throw the ball in. As the game had begun, their team were met with thunderclouds created by Dulio that caused icy cold heavy rain accompanied by lightning strikes that they had to dodge while attempting to obtain the ball first, the was fought over between Xenovia, Nero then Bova but Ouryuu from their side was able retrieve the ball and score the first goal, earning them 5 points. Later on both teams have scored consecutive points of 88 – 85 with Irina's in the lead. Irina clashed against Kiyotora Shinra in a sword fight over the ball, just as her teammates arrived at her position, Dulio, Diethelm, Mirana and Nero took advantage of Irina also being a Brave Saint to use their Five Card combination attack to increase their physical abilities, Dulio snatched the ball from Irina and used the momentum to score a goal and gain the lead with 95 points. Irina appeared shocked that she had unwillingly assisted the other team in their technique, this left Issei to advice her to step back for the moment so as to avoid the same mistake but still reassured her to win.
As the goes on, Dulio's team followed Rudiger's strategies to exploit their weaknesses such as forcing Xenovia to assist Irina which gave their opponents an opening to score again and causing Xenovia to blame herself. 2 hours have past with both sides running low on stamina, she and Xenovia were after Dulio who had the ball but in the way stood Kiyotora who wielded two ethereal katana's that had been given to him by the Vatican, Rossweisse tried to give them backup but was stopped by Mirana and Griselda's attacks, forcing the Valkyrie to retreat. At that point Xenovia took the chance to propose to Issei outloud to take her as his bride as a way to motivate her, Irina then rushed in followed her lead and also requested for him to take her, Issei soon regains his composure and accepted them both. Upon becoming officially engaged to Issei, the two swordwoman's gained a massive confidence boost unbelievable aura surged forth from them and their respected Holy Swords. With this she two were able to send the opponents in their way flying off as if their fatigue from earlier had vanished, Xenovia then requested that she wanted 5 kids while Irina only wanted at least 2 (A boy and a girl).
Irina and her team were able to gain more point by gathering their opponents attention, creating an opening for Asia to score, leaving them behind Dulio's team 2 points. She and Asia both ran to support Xenovia who had collapsed along with Nero. The timer eventually goes off with Irina and her teammates having lost to Dulio with the overall score 144 – 146. When was said and done, Irina offered a handshake to the timid Mirana saying they ere comrades now and the two gave their respects to each other. Later when the school's Ball Tournament had already commenced, Irina and some of the other ORC members were pitted against Xenovia's Student Council team in a game of basketball, which soon ended in a draw. On their way home, Irina and Xenovia just happened to come by Issei proposing to Asia and hid as to not ruin the moment. Xenovia contemplates how her engagement could've been just as romantic but shed tears as they're all happy that the three of them are now engaged and hugged each other in joy.
In Volume 24, Irina and everyone were enjoy their time a pool when they heard that all of their parents and guardians are meeting at the Hyoudou Residence. There she finds that her mother had also returned to Japan, she also teased her daughter over her engagement with Issei. They revealed that they were all gathered together to discuss plans for their wedding ceremonies, all the girls engaged to Issei made their personal requests with Irina wanting her wedding to take place in Heaven.
Irina and her comrades would later have to protect Koneko and Kuroka from Grim Reapers led by Thanatos. During the Rating Match between Rias and Vali, Irina and her friends along with members of Tobio's Slash Dog team fended off the Grim Reapers from interfering with the match. Lavinia took the lead in having frozen all of them in place, allowing the rest to easily strike them. When all their enemies were dealt with, Irina and everyone went to watch the ending of Rias' match, witnessing she had to reluctantly forfeit. Everyone then later payed Rias a visit at the medical room. Irina and almost every girl present requested kisses from Issei as Koneko and Kuroka were hogging him for themselves.
In Volume 25, Irina and her team were watching the tournament in Issei’s room and sees Diehauser winning against God-class beings which Irina shows her admiration towards the Rating Game Champion because he only participated the middle of the tournament. They also watch about mysterious new devils Balberith and Verrine, and the Shooting Star team who owns new Sacred Gears. After Rossweisse’s marriage with the Chief-God Vidar, Asia and the team began to analyze the members of Team Leisure of the Kings such as Typhon and his weather abilities, Apollon whose light power is dangerous even to ultimate-class devils, and Vidar’s kicks and mystical boots puts him on par with Thor. Rias comes to Issei’s room and informed the team that they been summoned to the vip by Ajuka who offered to help train both teams in the smartphone game called Beelzebut. During their break from training and the girls start thinking about Issei, Irina and Xenovia became confused by their talk and wondered if they should become a kidnapped princess so Issei can come and save them and Irina believing that a kidnapped prince is romantic and wants Issei to save her but Xenovia informed her that it’s impossible due to them being born in the battlefield. After training at the Beelzebut, Irina slept together with Xenovia and Asia in order to deepen their friendship.
On the day of the match, Irina travels together with her team to Valhalla in Norse mythology at the Thor Stadium for their fight against Team Leisure of the Kings. When the match started Irina joined Issei, Xenovia, Rossweisse, Ravel, and Ouryuu in the stairways of the artificial Yggdrasil. In one of the floating islands, Xenovia joined together with Irina and Ouryuu and became the first opponents to the current chief-god of Olympus Apollon with Irina introducing herself as Michael’s Ace and currently a member of Issei’s team. Irina and Xenovia started to attack Apollon but he quickly dodge their Ex-Durandal and Hauteclaire. Irina coated her Hauteclaire with her holy aura and attempted to slash Apollon as he enhances his hand small amount of divine aura in his hand and continuously firing it. As Apollon pushes Irina, Xenovia, and Ouryuu back, Irina declares that Issei’s going to win and he is her darling and as Apollon hears their declaration he decided to fight them seriously as he dislikes flashy fights. Irina and Ouryuu were ultimately defeated by Apollon in their battle but won the match due to Typhon’s losing the fight.
Irina and her teammates celebrated at the Hyoudou Residence along with the rival teams for passing the preliminaries and entering the main stage of the tournament. As Issei was surrounded by his rivals, the Church Trio pulled Issei away from them with Irina saying he is her darling.
Powers & Abilities
Master Swordswoman: Like Xenovia, Irina is well versed in swordsmanship, being able to fight on par with Jeanne during their first encounter. By Volume 19, Irina skills became great enough being able to keep up against Ewald Cristaldi wielding a replica of Excalibur.
Light-Based Weapons: Being an Angel, Irina can create light-based weapons such as a light sword, spear, or a bow. In the anime only, Irina has demonstrated the use of light-based weapon that resembles a Halo, which she can use to grab hold of or restrain a foe with the size/power of a Fenrir pup. Irina created a technique in Volume DX.4 (V23.5) where she made a whip of light that imitates the ability of Excalibur Mimic.
Enhanced Speed: While she can't match up to the likes of Yuuto. Irina is still noticeably fast for a church warrior as she dodges Jeanne attacks with ease.
Flight: Being an Angel, Irina can fly using her wings.
Excalibur Mimic (擬態の聖剣, Eskukaribā Mimikku): Irina's initial weapon (through artificial means). A Holy Sword that has the ability to transform itself into any shape as its wielder's desires. This sword was later given to Xenovia to be fused with Durandal.
Holy Demonic Sword (聖魔剣, Seimaken): A prototype Irina received from Heaven in Volume 12, based on Yuuto's Sword of Betrayer. She is able to use the swords ability to use different elemental attributes, ranging from fire, ice, and lightning.
Hauteclere: Irina's current primary weapon, a Holy sword given to her by her father, starting to be the most qualified to wield it. The sword has the ability of purification, even to those that are cut by it.
- "I shall judge your sins! Amen!" (Season 2, New)
- "I'm not a self-proclaiming angel, I'm the real one!".
- (To Issei) “……The one who was unfair was you, Ise-kun. If you say something like that……I can’t hold it…… ……I won’t be able to leave you……!” (Volume 18, Life 2)
- (To Issei) “Ahmm, of course! It’s because when we were kids, Ise-kun came to sleep over at my house and I stole a kiss from you.” (Volume 18, Christmas)
- (To Issei) “I’d be annoyed that I can’t play together with darling.” (Volume 21, Life 2)
- Irina's birthday is on September 29th.
- Among all the girls, Irina has known Issei for the longest time and was the first girl to kiss him.
- Irina has become well-known for calling herself an "Angel", thus gaining herself the title "Self-Proclaiming Angel". As a vindictive insult, she has been recently called the "Self-Proclaimed Childhood Friend".
- The manga "Samurai Vatican" and protagonist of the series "Oda Nobuna" which Irina mentions in the short story "Stop! Yuuto-kun!", are references to another light novel series Miyama-Zero works on called "The Ambition of Oda Nobuna".
- Irina's name, along with Xenovia's, were decided on a whim when Ishibumi spent a fine Sunday on a riverbank.
- Irina sometimes appears as a guest on Asia and Xenovia's expository videos, which they upload to DeviTube, about Japan’s daily school life, forming a popular trio streaming group.
- Irina was featured in Weekly Brave Angel, an internal magazine at the church she works at, making her quite popular among the male members.
- She is quite popular in general with people who know that angels exist.
- In the light novel and anime, Irina is said to be an artificial holy sword wielder, while in the manga, Xenovia said that Irina is a natural-born holy sword wielder like her.
- Irina wants to have her wedding take place in Heaven.