>>283590681
The term for "those in power" seemed to have been 国を動かすお偉いさん (Kuni o ugokasu oeraisan) or "the important people who move the country" or as Google put it "the bigwigs who run the country". As before, Sana's line regarding familial duty has similar connotations, but is different: 私は父に従います。 (Watashi wa chichi ni shitagaimasu.) or "I obey my father."

>>283590660
I think 1r0n used the volumes until he got to the stuff that hadn't been collected yet, but I can't be sure. That's where I got the VIZ editions off Nyaa. It is labeled digital. Just noticed there's a comment on Nyaa saying they got Hyakka's name wrong in volume 6. So, guess that answers that. Oh yeah, the name on the character thing at the beginning is Hatsuka. Whoops.