After one hour of the flight, only Luke and another group were left behind in the airplane. Since he was going to work alone, he was learning the ins and outs of using parachutes. Rina said that he could survive the fall of ten kilometers of height even if he didn't enhance his endurance with his current level. Still, Luke didn't feel like testing that or wounding his legs as soon as he landed. So, the parachutes were necessary.
When the door opened, and he finally saw Atlanta, Luke saw many big birds flying around. While they were big, they didn't have the courage to approach the airplane. He couldn't use Appraisal since they were so far away, but he could see that their bodies were white and light-blue… they probably were flyings monsters that could use ice magic. Luke could tell because a good part of Atlanta was covered in ice, and even from above, the temperature was strangely cold for that time of the year.