He wasn't planning to give them benefits from the start. What he needed to do was temper their mentality and change it first. These things were more important than changing their physique.
He would rather have a weak loyal soldier than a strong yet disloyal follower. He had to turn them into soldiers. Someone who was able to take orders without thinking.
Soon enough, the entire place was filled with people within the age group of 15-25. There were around 400 men and 100 women. They really had pathetic appearances.
He noticed something peculiar from these villagers. Unlike the elders of the village, these people had a hollow look in their eyes. Especially the women. It seemed as if they had been utterly broken right now.
This brought a smile on Saito's face. A ruthless kind of smile. He knew that these people were going to be easier to control.