MEMBER is an Academy City-based organization. They answer directly to Academy City General Superintendent Aleister Crowley. The original goal of the organization isn't disclosed, though they seem to have been interested in stopping the two teams that are rebelling against Academy City: SCHOOL and BLOCK. By the end of Volume 15, the team 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)