I know that these comments are old, but don't get too pissy for not getting to know everything immediately. We know what we know and the rest gets revealed in due time. And furthermore, it isn't rocket science to infer a bit on what happened.
They got back from the warrior test alive and well. MC by the rules got a shot at the eighth test, whether he tried or succeeded is revealed later (although it's pretty fucking certain he tried and most likely succeeded). What he got, if he got anything, is probably revealed the second it is used/needed in the story to avoid exposition vomit. The gravekeeper tribe fucked off to wait for the prophecy they were talking about, to a location shown (there were people there, most likely even older members of this faction, looks like), but not explained in depth. The traitors of that same tribe got crushed by a can of whoopass and the rest of that wider, yet unknown faction got their fingers burned. Bird dude is 99% a cadaver. Noah fucked off for the time being, to show in-story that the training wheels are off. The reason is likely that he had certain amount of allotted time/energy/whatever to train that one of the 12 chosen ones (which MC was said to be earlier).
The four assassins were pretty explicitly shown to actually be 5 assassins and three of them were gibbed in great detail on-screen, no mysteries about that. They are dead, as in not alive. Corpses. Two of the assassins knew that they weren't match for MC by themselves, so they fucked off hypocritically swearing revenge. So to tally, 5 assassins, out of which are 3 dead (again, that means that they were alive, but aren't anymore) and 2 escaped with their tails between their legs for the foreseeable future. In total 0 assassins on MC's butt cheeks for the very moment.
Sorry about the sarcasm and sass about the assassins, but it was almost as explicitly shown in the story as possible and throwing shit about unclarity is a sorry sight to see, especially when the only source for the aforementioned is a lack of actual reading being done.