Since that was an excellent opportunity, Leon decided to level up Anti-Mana Field as much as possible. That being said, he couldn't fly, thanks to that. So, eventually, he landed in the middle of the city. Although the place didn't look all that developed, Leon recalled New York. There were several buildings made of concrete... it looked like the survivors managed to produce it using mana. The houses and buildings didn't look much different from each other, but the places seemed quite comfortable and secure.
When Leon's mana was about to end, he used Transfer and reappeared above the city. He had to recover his mana, so he used the remaining mithril box. He had to do that and then let the people of the city attack his Anti-Mana Field again.