When they appeared, the current king, who was of the sixth generation, ever since they had sealed themselves in that space using the relic, was dumbfounded.
From the information that he had received from his father and grandfather was that, after five centuries, they would finally appear back to the normal world.
They had all been informed about how they normal world looked like. There wasn't the barrier that surrounded the other world just like the one that they were in. Additionally, it was big and beautiful.
Since their population was already high, they had been forced to cut down several trees in order to create plantations for the sources of food.
So, when they appeared, they were expecting that they were going to see the beautiful forests and so on.