Devil May Cry 4 - Trisagion

Nero is a young demon hunter who lives on the isolated island of Fortuna and is also a member of the Order of the Sword: a religious sect of knights who worship the Legendary Dark Knight Sparda as a God. Dante arrives, and murders The Order's leader, the High Priest Sanctus, in front of the entire congregation. At the same time, an army of demons invade the city, putting everyone, including Nero's love interest Kyrie, in danger. Tasked with stopping Dante by Kyrie's brother Credo, the Captain of the Holy Knights, Nero's journey leads him to discover that he is in fact a descendant of Sparda himself, and Dante is not his enemy. Under orders from Sanctus, Agnus, has been siphoning the power of the long lost Devil Arm Yamato, the sword of Dante's brother Vergil, to create a demonic army, and imbue high-ranking members of the Order with demonic power. To Agnus' shock, the shattered Yamato restores itself in Nero's presence, and flies to Nero's aid. With The Order's plans revealed, Agnus flees to inform the newly resurrected Sanctus