Unexpectedly at this time when most of the fighters fighting those monsters outside of the kingdom some people enter The Kingdom through a secret door that the Duke prepares for them even before leaving the kingdom.
Even the king of the kingdom did not know about this secret tunnel. So those 10 people entered the Oni Kingdom. Right now the whole city is empty. Because everyone in the Oni Kingdom already went to the temple of their god and because of this, you will not see anyone in the whole city.
At this time those 10 people did not wait any longer and quickly started to advance. They are going toward the Royal palace. But at this time more people came out from that secret road and this time those people did not go toward the Royal palace. All of those people without any delay went to the temple.