Guys, did you notice that there's only 1 murder mentioned? I think Yatsura was being treated.
So, basically, there was some dust on Yatsura, Revan's murder by a maniac (Mizuno Ami or Gurio Umino?), an interview with Olam, and Kino Makoto's initiation, if this isn't just a literary description, of course.
Some kind of dust, planets, Mercuries, Jupiters, I don't understand anything at all)))
This is about Usagi, by the way; just start googling after the words "maybe Yatsura was being treated."