they find out later, but since all the Japanese hunters attending this raid die like these three just now, what amounts to most strong hunters Japan even has, there's not really a reason to demand any compensation, as the Japanese have basically fucked themselves up this way.
I kinda expected that the thing that hatched from that big egg killed the queen, but I didn't expect that it got out and would massacre a japanese group.
But man it sucks that I have to wait another week just to get a chance to see what that thing looks like.