- "Dispatched in Mankind's darkest hour, we are knights of the blue flame!"
- ―Creed of the Novus Orbis Librarium
The Novus Orbis Librarium (世界虚空情報統制機構, Sekai Kokū Jōhō Tōsei Kikō, lit. New World Void Space Cue Administration Bureau), called the NOL or Librarium for short (統制機構, Tōsei Kikō, lit. Administration Bureau) or simply the Library by their many detractors, is a multinational task force, run by a central authoritarian leadership in the world of BlazBlue. The NOL's purpose is to keep balance in the world by safeguarding and regulating sources of dangerous power. It was formerly known as the Orbis Librarius Norma (虚空情報管理機関, Kokū Jōhō Kanri Kikan, lit. Void Space Cue Management Sector) during the Dark War, but renamed itself to reflect its new position in the world.
The Librarium was created during the Dark War. When the Black Beast was trying to destroy the world, humans developed the Ars Magus; using it, humanity fought as one against the monstrosity. The people who first understood Ars Magus developed the first grimoires, granting anyone the ability to use Ars. The NOL developed a number of grimoires during the Dark War, and used them to help defeat the Black Beast. After the war ended, the NOL decided they should keep the grimoires and control who should have access to them. Although they claimed it was to keep the grimoires from being misused, the people resented them for their tight control over the only thing that could let them use the Ars Magus. A great deal of dissent was caused by this widening socioeconomic gap between those who could, and could not, use Armagus. Years later, this dissent would eventually spark the Ikaruga Civil War, or the Second War of Magic, when the Ikaruga Union openly rebelled against the Librarium. After the war, the Librarium imposed a harsher rule on the world, punishing any sign of rebellion with the death penalty.
- Imperator (supreme ruler)
- Invictus (second-in-command)
- Field Marshal
- Lieutenant General
- Major General
- Brigadier General
- Field Officer (command NOL military divisions)
- Lieutenant Colonel
- Company Officer
- First Lieutenant
- Warrant Officer
- Master Sergeant
- Lance Corporal
- Private First Class
- Private E-2
- Private E-1
- Jin Kisaragi (defected)
- Makoto Nanaya (defected to Sector Seven)
- Noel Vermillion (defected to Sector Seven)
- "Flame" is a synonym for "blaze". Basically, the members of the NOL call themselves "knights of the blue blaze".
- The NOL is similar to the Holy Knights in the Guilty Gear series.