Chapter 528 - Talking
Naturally Sam had a way to free those people from those slave collar. But before that he needed to find his technique really work or not. Also because of that he needed a human slave and needed to use that technique on that person.
So before anything he once again begin to search for a person. Well the thing was that most of those human slaves were in tough situation so it was very difficult to him to approach those people. But fortunately previously when he was searching around those house he moves likely noticed something and because of that he quickly went back to that house.
After coming to that place he could already so a good thing and with that he began to smile. If you are wondering why he was smiling like that then it was because now no one present in that house accept those human slaves. Actually previously he saw those people most likely getting ready to go outside but naturally they won't bring those human slaves.