Xenovia and Irina

1.Xenovia Quarta Xenovia is a beautiful young woman with chin-length, blue hair with a dyed green fringe on the right side and brown eyes (dark yellow in the anime, season 2-3). Her body measurements are [B87-W58-H88 cm] [B34-W23-H35 in], and her body weight is [56 kg] [123 lbs]. Xenovia's height 166 cm (5 feet 5 inches).

When Xenovia was first introduced, she was shown to have a calm, quiet, and serious demeanor, putting her mission first and only speaking when necessary. She was also very cold, bordering on heartless, as she called Asia a witch for becoming a Devil (even though she became one unwillingly so she could be with Issei) and even went so far as to try and kill her. She later threatened to do the same to Kiba when he was technically a Stray. After being reborn as a Devil, however, she gains a very close relationship with Asia, being touched by her kindness and apologizes for calling her a witch when they first met.

In battle, Xenovia appears to be a bit arrogant, stubborn, and rarely uses her head in attempting to overwhelm her opponents with pure power and strength instead of being subtle or using skills. According to Issei, her fighting style is comparable to that of a Rook despite being a Knight, referring to her as a "Power idiot". As Xenovia was raised in the Church, she lacks common knowledge on the life of a normal person, evident when she brought a box of condoms to school as well as wanting to give birth to strong children, and has chosen Issei as her mate.

As the series progresses, it is shown that Xenovia has developed genuine romantic feelings towards Issei due to him protecting his comrades, even if he gets injured by doing so. As a result, she becomes more aggressive in seducing him, which proves that Xenovia is quite perverted as well, a fact that she is "cool" with.

2.Irina Shidou Irina is a beautiful young woman with violet eyes. She has long chestnut hair that 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.

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 Pendragon discussing Excalibur Ruler, although he stated that the location is secret.

She is a fiercely devout Christian, even more so than Xenovia, 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 Argento 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 close friends with Asia and the rest of the Occult Research Club members, even joining the ORC herself.

3.Issei Issei is a high school student of average height with short spiky brown hair, with two short locks of hair behind his head, and light brown eyes. Following his training with Tannin, he gained a more muscular and toned build

Even by his own admittance Issei is an unintelligent and straightforward individual, with his tremendously perverted and lascivious nature being the greatest characteristic of his personality. Issei easily indulges in lewd fantasies, being obsessed with female breasts and a desire for a harem, traits he openly admits and makes no effort to hide, a characteristic that he is, in fact, proud of. This has caused him to be instantly labeled as a pervert among the girls of Kuoh Academy and has gained him notoriety for being one of the members of Kuoh Academy's Perverted Trio.

Despite his pervertedness, Issei is courageous, selfless and unwaveringly determined to protect those who are important to him, despite almost dying by the hands of his opponents.

As noted and pointed out by Koneko, although he is the weakest Red Dragon Emperor, Issei is the kindest among them, as unlike his predecessors, Issei is not power hungry.

Issei was visiting them,and they show him their oni costumes