After Issei was promoted to High-Class Devil, he was given the right to receive his own Evil Pieces in the events of Volume 22. He trades some of his unused pieces with Rias for Asia, Xenovia and Rossweisse, and with Lady Phenex for Ravel.
For the International Rating Game tournament, Issei formed the team: "Team Red Dragon Emperor of the Blazing Truth", as he had members of his peerage take up roles in his team as well as added Irina, Bova Tannin and Grayfia Lucifuge to fill the role of his Knight, his Pawn and his Queen respectively. Elmenhilde also makes an offer to join his team. Ouryuu Nakiri and Elmenhilde would later fill their roles as Pawns, and Bova became a Rook while Roygun Belphegor served as their advisor and later joined the team as well.
In True Volume 1, the peerage assisted in defeating the group of unknown devils that were appearing only to be suprised by the appearence of Ingvild Leviathan, the last descendant of the original Leviathan, who was mind-controlled into subduing Issei. After defeating the goddess Nyx, who was targeting Ingvild for her Longinus, Issei reincarnates her as his Queen.
In True Volume 3, the peerage went to Kyoto to perform a live Oppai Dragon event, where they were ambushed by members of the Alliance of Hell; Gressil and Sonneillon. Working with the other members of DxD and the Kyoto Youkais, the group was able to defend Kyoto from Erebus' attack and defeat him as well as his allies.
In True Volume 4, the peerage was attacked by Meredith Ordinton, who used her Sacred Gear to seal Issei's sexual desire. Accompanying the members of Team DxD to London in hopes of finally defeating the Alliance of Hell, the peerage mebers were were assinged a role and placed in certain groups to aid the fight. The peerage was successful in defeating Hades and restoring Issei back to his normal self. In the aftermath, Issei trades his remaining Knight Piece, to Sona Sitri in exchange for Bennia Orcus, making her his second Knight.
After Issei became a High-class Devil, he became the president of Issei Hyoudou company and with Ravel being his vice president. Issei also serves as branch manager of the Gremory Large Enterprise.
|Issei Hyoudou (King)||Ingvild Leviathan (Queen)|
|Boosted Gear which is listed as one of the 13 original Longinus.||One of the descendants of the original Leviathan and possessor of the Longinus Nereid Kyrie. She was targeted by Nyx due to her Longinus but Issei saved her, making her his Queen.|
|Asia Argento (Bishop)||Ravel Phenex (Bishop)|
A third-year student at Kuoh Academy. Originally a sister who was known as the "Holy Maiden". She possesses the Sacred Gear, Twilight Healing which grants her incredible healing powers. She was reincarnated into Rias' servant after Raynare killed her. She became Issei's Bishop in Volume 22, after he became a High-class Devil.
Riser Phenex's younger sister who was a part of his peerage until his Rating Game with Rias Gremory. Following that Rating Game, Ravel was traded as her mother's Bishop piece before being officially traded to Issei Hyoudou now serving as his Bishop.
|Xenovia Quarta (Knight)||Bennia Orcus (Knight)|
A Holy Sword user who was sent from the Church along with Irina to destroy or retrieve the stolen Excalibur swords. After she finds out that the God of the Bible had died a long time ago, she decides to join the Occult Research Club as Rias' servant. She possesses the Holy Swords, Durandal and Excalibur. She became Issei's Knight in Volume 22, after he became a High-class Devil.
A half-Grim Reaper. Daughter of Orcus, an Ultimate-Class Grim Reaper, and a human woman. She left the Realm of the Dead and became Sona's Knight, after the original candidate Sona set her eyes on couldn't become Sona's servant. After Sona was forced to become the Head of Sitri and quit her position on the frontlines, she traded Bennia to Issei so she could keep fighting with Team DxD.
Originally Odin's bodyguard. After the battle with Loki and Fenrir, Odin leaves her in Issei's town. She then gets persuaded by Rias to become her servant. She remains in Kuoh Academy as a teacher. Under Rias' order, she became Issei's Rook in Volume 22, after he became a High-class Devil, as Rias felt that Issei would fully utilize her potential and Issei would need her magic prowess.
Issei Hyoudou Company
The Issei Hyoudou Company is a branch business of the Gremory Large Enterprise and serves as the main base of operations for Issei's peerage. As it is a place specifically for Issei and his peerage, it is its own business a part of the enterprise run by Issei as the company's president, with Ravel serving as its vice-president. This makes Issei a branch manager of the enterprise at the same time. The workplace was originally one of Azazel's labs he had set up in Kuoh Town and is used for Issei and his peerage to do Devil jobs. It is located in a basement under a private cram school ten minutes away from the Hyoudou Residence; the school had been bought by Grigori who built the basement where Issei's company is and then it was transferred to Issei. Access to the company is done by travel via elevators in the cram school where only relevant personnel can proceed to the basement, due to special recognition systems in the elevators.
The workplace is small where there is a single long corridor with one door directly in front at the end, three on the right, and two on the left totalling six rooms altogether. The rooms on the right side starting from the one closest to the elevator is the shower room, followed by the male and female toilets. On the left side starting from the elevator is the storage room, followed by the lounge which is equipped with a kitchenette. The door at the end is the office with a placed sign that reads: Issei Hyoudou Household Office. The room is quite spacious and its size is fifty square metres large. There are several desks inside, on top of which are documents and computers, while file cabinets stand on the side along with a fax machine and a sofa for guests. There is a space for a magic circle which is used when performing Devil jobs.
The requests for healing are given to Asia, those for physical activity are given to Xenovia, and the requests requiring magic are given to Rossweisse. Ravel is the bookkeeper but occasionally will respond to requests and Issei responds to the same clients he has had since becoming a Devil.
- All but one of the members of Issei's peerage were traded to him: both of his Bishops, both of his Knights, and his Rook.
- Among the traded members of Issei's Peerage:
- Ingvild was the first member that Issei revived using an Evil Piece, rather than being traded to him.
- Ravel is the only member to be a Pure-Blooded Devil.
- Issei's remaining Evil pieces are a Rook, and all 8 Pawns.
- Issei's remaining Rook is a Mutation Piece.
- While Queens are normally second-in-command of peerages, Ravel (a Bishop) appears to be Issei's second in command.
- It was stated by Bova that, like Riser Phenex, Issei plans to create an all-female Peerage.
- Bennia is currently the only member to be below High-Class Devil as she is Middle-Class.
- Issei's Peerage is one of two peerages to possess more then one Longinus user, the second being Rias Gremory's Peerage.
- Issei himself is one of the Longinus users in both peerages, and the other user in each peerage possesses a New Longinus.