Even though Sam decided to help them, he instantly did not appear in front of them. He made some distance between themselves and only after that he deactivated his skill. After that he began to walk toward that direction.
Also one more thing of that from the start he was wearing his mask. So you can say that nobody will be able to find out about his real identity.
So like that he was going toward that direction and sometime later he could already see those people. Right now even though people were seriously injured but because of the aura they were releasing, no monster attacked them. But still with that they were unable to walk faster and because of this it was quite risky for those injured Warriors.
Most likely those groups of Warriors also notice Sam. Also Sam did not hide his power, so they could easily tell that he was a special grade Warrior.
