After the King's speech throughout Ress, people started to have faith in the kingdom and their management once more. Besides, it felt inconclusive if there was no information given to the people and the Celestials occupied Lyro for no reason.
Now that the King's speech had been done, people started to move to begin the recovery process of the kingdom. The military and civilians began to make sure that everyone still had basic food and shelter within the underground tunnel networks while most of the working population cleared the scrap and rubble incurred by the war.
While it might seem as if Jin might have built the buildings for naught but that was not the case. Right now, his improvised smithing skill has gone up to S tier. There was even a trait where he could rebuild items almost in an instant as long as they had been built before. What's more, is that Jin did not need to look for resources.