Nine floors of the ancient tower.
Levi doesn't plan to undo Ritter's Black Emperor's enslavement for now. This person isn't inherently bad; he just seeks fortune and hasn't harmed anyone.
If it were Levi, arriving in such an unknown, treasure-filled world, he would likely do the same, or even more ruthlessly.
However, in the future, Ritter is needed to act as a "guide party" when heading to the Nelarayan civilization, to prevent any unforeseen mishaps during this period, he has to be constrained for now.
Thinking about the Abyss's current massive invasion of the Multidimensional Plane, Levi felt a sense of urgency... He feared the Abyss might destroy Nelarayan before he could get there.
As for the Golden Sacred Realm, he is not worried for the moment.
