Yeah, this arc feels out of proportion. Isn't this just a political lesson for the main characters, but without any actual impact? It's equal to a simulation (albeit deadly), but there's no impact to what's happening in their real world. Sure, this might give them skills and wisdom (and cool things as prizes), but it would have been nicer for them to learn this stuff in their own world/time, thus creating real consequences for failing as well. I hardly imagined the visits to shadow worlds to be like this. If they are all this extensive, as well, just how long is this manhwa going to be, huh?