The death of the Tsuchigumo dropped a few items that I took with me since Queen Tanya didn't need them and Queen Tori had no use of them. As for me, I don't have any idea whether this will be useful or not but there is a chance I can use them, you see. Who knows in the future? And besides, some of the materials dropped seems interesting to use. It would be interesting to craft something out of these items as well.
In any case, the invasion and attack are clear enough that even this city is not safe from the wrath of the Shogun's soldiers. That is enough for everyone to know what the current shogun was like.