Two took the training a lot more seriously than One did so they never exactly saw eye to eye. She was still in the nursery when Three came along. Those two were a lot more similar in temperament.
As time went on and the three of them became old enough to train together, he knew he was different than they were. Four was much the same but Five…she was starting to question things too now that she was getting old enough to speak.
One had no idea what would end up happening to her. When she grew up would she continue to ask questions or have the urge punished out of her? And what about Six? He was just a baby. He would hear the same things and get the same rules as the rest but what would he turn out to be?
There was no telling what would truly happen with any of them or any other Numbers that came afterward. All One knew was that he needed to get out and experience the world for himself.