Roman Orthodox Church

The Roman Catholic Church (ローマ正教 Rōma Seikyō, lit. "Roman Orthodox Church") is the world's largest Christian Organization and is one of the primary antagonist factions in the entire Toaru Majutsu no Index series. Throughout most of the series, Touma Kamijou is forced to confront and battle many corrupt magicians and members of the Roman Catholic Church all throughout the series and is currently at a state of war with Academy City and the English Puritan Church. In the Toaru Majutsu no Index series, it is referred to as the Roman Orthodox Church from the author's naming convention.

DISCLAIMER: This article may be offensive to the real world Catholic Churh, but this article is purely science fantasy fiction and does not represent the real world Catholic Church.

Background
The Catholic Church was founded by Saint Peter in the early days of Christianity where he was personally apointed by Jesus Christ to be the very first Pope and leader of the church. Overtime as the years went on, great calamities had occured in Europe resulting in the creation of the organization known as God's Right Seat in order to adivse the Pope on matters of the church and eventually become more powerful than that of the entire Catholic Clergy in general. Eventually, the Roman Orthodox Church grew in size and scale to gain over 2 Billion followers worldwide by the time the 21st Century arrived.

Deep Blood Arc
Sometime after Index had arrived in Academy City, an Alchemist by the name of Aureolus Izzard has appeared and had managed to take over Misawa Cram School and has Himegami Aisa held camptive. The Thirteen Knights of the Roman Catholic Church are sent in to deal with Izzard but he manages to defeat all of them single handedly with only one of them actually getting killed. Touma and Styl go in to investigate and eventuallt return only to have Index being held captive by Izzard. Touma manages to face Izzard and even defeat him. Afterwards, he had left the alchemist with a different appearance and a different persona effectivly "killing" the person known as Izzard leaving the defector on his own and no longer a problem.

Orsola Aquinas Rescue Arc
One late afternoon, Touma Kamihou was walking home when he ran into a nun known as Orsola Aquinas. Touma gave her directions to her destination but she ended up getting kidnapped by the Amakusa-Style Remix of Church and Touma was then forced to help Agnese Sanctis and her forces save her. After the operation was done however, it is revealed that Agnese had manipulated Touma and that she was actually being saved from Agnese and the wrath of the corrupted Roman Orthodox Church. This causes Touma to rescue to Amakusa Christians and stage a rescue operation to free Orsola from Agnese and her forces. This leads to a massive battle at the Orsola Church resulting in a victory for the Amakusa and Orsola to join the English Puritan Church and acquire protection from them.

Current Members

 * Pietro Yogdis - Current Acting Pope and Biship of Rome
 * Matthai Reese - Former Pope and Biship of Rome prior to World War III
 * Fiamma of the Right - Former Leader of God's Right Seat and De Facto ruler of the Roman Orthodox Church (overthrown)
 * Vento of the Front - Former Member of God's Right Seat and Church Magician
 * Acqua of the Back - Former God's Right Seat Member and Mercenary
 * Lidvia Lorenzetti - Member of the Catholic Church
 * Balbina - Magician and Member of the Church
 * Vittorio Cassera - Leader of the Thirteen Knights (alive but missing)
 * Agnese Sanctis - Leader of Agnese Forces, Magician, and Battle Nun (serves as Catholic Representative to England)
 * Angelene - Member of Agnese Forces, Magician, and Battle Nun (serves as a Representative of Catholicism in England)
 * Lucia - Member of Agnese Forces, Magician and Battle Nun (serves as a Representative of Catholicism in England)
 * Agate - Member of Agnese Forces and the Catholic Church
 * Caterina - Member of Agnese Forces and the Catholic Church

Former Members

 * Terra of the Left - Member of God's Right Seat (deceased)
 * Parsifal - Member of the Thirteen Knights (deceased)
 * Aureolus Izzard - Alchemist and Cancellarius (defected to the Anglican Church)
 * Oriana Thomson - Magician and Mercenary (defected to the Anglican Church)
 * Orsola Aquinas - Magician and Nun-in-Training (defected to the Anglican Church)