The Masters (教務部 Masutāzu?) classifies the Butei High School Faculty group. Each teacher has their personal record of combat professionalism disregarding law, such as the Self-Defense Force, Special Forces, Mafia, Mercenary, Hit-man, etc. Due to their combined backgrounds, the department building itself is considered one of Tokyo Butei High School's three dangerous territories regardless if a student has business there or not.
| Butei | Butei Law • Butei Ranks • Butei Academy Uniforms • Team Formations • Caravan • Amica • Quartet • Lumberjack |
| Butei Curriculum | Assault • Lezzad • Connect • Inquesta • Logi • Medica • Research • Intern • Masters • Colt |
| Powers and Tools | HSS • Irokane • Stealth • Fuchou Poison |
| Locations | Tokyo Butei High School • Hotogi Shrine • Nagoya Butei Girls Academy |
| Organizations | Butei • IU • Ranpan • Team Baskerville • Bandire • GIII League • Regiment Hex • Kinokuni • Public Division 0 • N |
| Families | Tohyama Family • Mamiya Family • Ulus Tribe • House of d'Arc • The Cao Clan |