Chapter 519 - Common monsters
Sam already went far away from that place. After helping those people he already decided to leave that place and did not even give those people any time to talk to him. But you can say that he was also very surprised because he already recognised those people. Actually every person from Earth who watched Anime or read manga and novels were very familiar with those people.
Not only that he also knows that all the rumors about his previous lives were true. As those people have a connection with Nature. Not only that, they were very beautiful like he heard in his previous life. Well but still right now you should understand that they were the enemy of the human so did not want to make any friend or have any kind of connection with them.