Devil May Cry order of the sword ring. The second ring for Nero. The Order of the Sword (in Japanese: Maken Kyōdan) is a militant religion and a theocratic society of fanatical devil hunters which started out as a small congregation from the shores of their isolated home island of Fortuna, and it is ever present in Devil May Cry 4.
They believe that centuries ago the Legendary Dark Knight Sparda once served as the feudal lord of the city of Fortuna and reigned over the island. They forever worship him as a god and wishes to eradicate all demons in his holy name. All the native townspeople of Fortuna including children are members of that faith which dictates every aspect of their daily lives. The townspeople wear cowls with the insignia of the sword of Sparda on them, and live pious yet modern day lives, peacefully worshiping Sparda among their different and daily activities while the Order of the Sword act as the guardians of the island and protecters of its people. Every year the Order of the Sword celebrates the Festival of the Blade, the day that all of the faithful remember Sparda's great sacrifice.