In the ark city or rather, the floating city, the people were still recovering from their shock of having their world turned upside down when the massive wave, which reached thousands of meters tall came for them. Having been isolated within the ark for thousands of years, the ignorant society had no idea what was happening at all. The powerful force of nature; the boundless space outside; the empty, cloudy sky; and the limitless expanse of the sea—all of these things were unimaginable to the people. However, they were now witnessing all of them in rapid succession, things that their ancestors had never told them about. Thus, when the giant wave came, the people on the floating city were plunged into terror and panic. They thought that Io's ocean was the Sea of Eordos from their legends (despite not knowing what the sea looked like), and the giant wave was a mythical creature that would swallow anything in its path.