D block = Infants below the age of 4, who are being trained as UNSI agents are called D blockers.

C block = 4-8 most of these children beging their seriouse training and some of the are given assigments.

B block = 8 and up. These agents are being given their final trainig, although some may skip this stage.

A block= all agents who have finished their training belong to A block.

X agents= The best agents, ussually gathered during their time in D block, the existance of these agents is thought to be a rumor.

Isolation cell= A small cell where disobedient agents may have to spend time. No one is ever kept in them for more than a few hours , and those who have ,ussually beging to show signs of insnity.