After Li Tian and the others got rid of the zombies, Zhang Yadong didn't even have the intention to intervene, even if he could ask Li Tian to give him a few crystal cores.
"Old Zhang, send someone to bring out these zombie nuclei and put them in the account. I've prepared food for you. Go back and have a look."
Li Tian didn't plan to send people to collect the crystal cores. If they collected them, it wouldn't be on Zhang Yadong's head. So, it was better to let Zhang Yadong collect them himself. In this way, he could justifiably record these crystal cores on his account.
Why was Li Tian so nice to Zhang Yadong, who he had just met for the first time? It was actually very simple. This world was definitely not a world where one person could survive. Whether it was a small or large gathering place nearby, they were all people that Li Tian wanted to rope in.
Perhaps one day, humans would also be completely United and fight for survival?