hopefully sierra can still find out why the murderous princess aries, the king and their henchmen were wiped out.
with her morals, the mass torture and sacrifice of people for summoning are surely actions to be condemned?
of course masamune took personal vengeance, but he's was driven into suicide before summoning, humiliated again and then condemned to death afterwards.
he could have killed aries faster, but he is literally the person who was devalued and almost executed by her, all while witnessing her true personality.
of course he judged her the same way she did to him.
to all adversaries in the castle that day, he killed them quickly and rather mercifully, aside from the king, another head figure of this kingdom's leadership practices.
besides, "the country of gray velk" isn't wiped out. the top of their tyrannical government is.
there were no civilian casualties here.