Church of Orsola

The Church of Ursula is a church which is being built in Japan. After it's completion it is planned to be the largest church in Japan at around the size of a baseball stadium. The Church is formed by seven chapels where every single chapel is planned to be used as a place to carry out one of the seven sacraments. Each one isn’t of the same size, how big the construct and amount of money spent on it differs on the frequency and the importance. These chapels include the Marriage Chapel, the largest one which is used for marriages, the Fuyou Chapel, the next largest which is used for funerals, the Holy Order Chapel and Confirmation Chapel which despite being important religiously are smaller as they cannot make money, and the Baptism Chapel. The Roman Catholic Church named it after Ursula Aquinas due to her contributions of traveling to three 'pagan' countries to preach Christianity. It is located somewhere near Academy City

Ursula Aquinas Rescue Arc
After Anieze Sanctis and her forces recovered Ursula Aquinas at Parallel Sweets Wonderland they retreated to the Church of Ursula. They placed a barrier around the partially constructed Church and gathered inside. Inside of the Marriage Chapel of the Church they gathered and they tortured Ursula until Kamijou Touma arrived. Shortly thereafter Stiyl Magnus, Index, and the Amakusa Catholics also arrived and the battle between them and Anieze's forces began inside the Church. After the battle began Touma ran out from the Marriage Chapel and eventually reached the Holy Order Chapel which is located behind the Marriage Chapel and climbed to its second level using one of the construction ladders. His pursuers then fired magic from their weapons to collapse the unstable platform he was standing on instead of risking climbing up after him. Before it completely collapsed he managed to jump up to the roof as when it tipped it slanted upward allowing him to climb higher. He then fought several nuns on the roof while Tatemiya Saiji, Index, and Stiyl Magnus are fighting near the atrium between the Marriage Chapel and the Baptism Chapel. After the tide turns against them they along with Touma rush and lock themselves in the Fuyou Chapel. After the nuns break into the Fuyou Chapel Touma and the others escape and split up. Touma then goes to the Marriage Chapel to confront Anieze. After fighting for a bit Anieze seems to have the upper hand before they notice that everything in the Church was quiet. The others arrive and reveal that they were setting up runes for Styil with the help of the Amakusa for he could use Innocentius. Once Innocentius was summoned the battlefield located at the church became quiet with the remaining nuns not daring to attack with Innocentius there. The fighting was concluded with Touma defeating Anieze in the Marraige Chapel.