Mind Read has improved from 25%, which was the experience they gained from their future selves, to 36% in a week. That is an increase of 11%.
This much progress is so because they are using it every time. They are always using it to snoop on the minds of their slaves and keep track of what they are doing and thinking.
When they thought of the fear of a slave escaping from their control, they couldn't help but curl their lips and chuckle.
Legion-4 said, "From today, there won't be any chance of escaping."
Legion-6 agreed and said, "We are one step closer to total dominion."
As rank 3 slavers, their slaves still have free will. But their slaves won't be able to ever escape once they use rank 3 Life Bond on them.
When they were rank 2, their slaves could escape if they died. But once Life Bond was used on their slaves, their slaves would die along with them if they die.