MEMBER is an Academy City-based organization that answers directly to General Superintendent Aleister Crowley. The original goal of the organization was not disclosed, though they seem to have been interested in stopping the two groups rebelling against Academy City, SCHOOL and BLOCK. By the end of Volume 15 MEMBER is annihilated after the death of its leader and the defeat or incapacitation of the other operatives.
- Professor (real name unknown)
- Yoshio Baba
- Xochitl (posing as an unnamed Academy City student)