This Instance's mission had already been completed by Ree Shil long ago.
However, this Instance was somewhat special; according to the final mission description, he could obtain a crystal that allowed him to travel freely to and from this world.
Meaning that even after leaving, he could return at any time if he wished.
Therefore, after completing the mission, he was not expelled.
Just to be safe, he did not leave the Instance immediately but chose to stay for a while.
After all, with a time ratio of 1:20, even though more than a year had passed inside, less than 20 days had gone by outside.
The contradictions and mortal feuds between Kung Fu Beasts and Gun Beasts were not something he could resolve alone.
But as the Administrator, he could not ignore the poisonous tumor that was the Left Heart Sect, which disrupted the normal development of the Primordial World.
So for the first half of the year, his main task was to capture and expel members of the Left Heart Sect.