The founders of the factions had a common goal.

Everyone was to have distinct personality traits in order to fit into one of the five factions, which required much genetic engineering and gene splicing. The five factions were to be named Abnegation, Amity, Candor, Dauntless, and Erudite, standing for selflessness, kindness, honesty, bravery, and intelligence. The system would be simple.

Aptitude tests at the age of 16 would determine which faction a person would fit in most, and the comers-of-age would then make their final decision on choosing day.

However, Beatrice Prior, Tobias Eaton, and countless others did not fit into a single faction. Their character could not be defined by a single trait. They were Divergent.

Everyone else found their homes in a single faction. They were what their society had planned them out to be, but there were some flaws. The Abnegation had to get over selfish habits, Amity had to try hard to be kind towards anyone and everyone, Candor were constantly punished for lying, Dauntless still had many fears, and even the Erudite couldn't ace their tests all the time.

Bur there were five small exceptions.

Even rarer than the Divergent.

They were the Subservient.