17 164 cm (5' 5") 87/59/89 Angel (Former Human) Ace of Spades Excalibur Mimic, Holy Demonic Swords Volume 3

Irina is a very happy, upbeat person, as well as a devout Christian. During her first appearance in the series, she was very harsh towards those who 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 God of the Bible was the center of her world, but with the discovery of His death, she has transferred her belief to Michael (the current "God").

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 under the orders of the Church to retrieve or destroy the stolen Excaliburs from Kokabiel and his men. She was defeated by Kokabiel while infiltrating his base and was left in a near death state by Kokabiel but was able to escape the worst with Asia's help. At the end of the volume, Irina takes all the stolen Excalibur fragments back to the church, disappointed at the fact that Xenovia has become a Devil.

Like Xenovia, she is also a Holy Sword user (albeit through artificial means). She is a fast sword user just like Xenovia, and also a possessor of one of the seven Excaliburs, "Excalibur Mimic", which has the ability to morph into different types of shapes that its user desires. However, her Excalibur was taken by the Fallen Angel leader Kokabiel during her introductory volume, and was later fused along with the three stolen Excaliburs into a single sword by Valper Galilei.

Later on as an Angel, she uses light-based weapons such as a light sword, a light bow, and arrows. In Volume 12, she used a prototype of the Holy Demonic Swords that Heaven had produced based on the sword Yuuto gave Michael during the events of the peace treaty in Volume 4. She later gained the ability to use different elemental attributes on the Holy Demonic Sword, ranging from fire, ice, and lightning.