I dunno what got you all confused - Setsu, his human clique ("Setsu's bodyguards" as they were recently called) and Yuuhi conspired against human kingdom all along. And it seems Yuuhi turned out to be somewhat on a yandere side is all. I thought she'd just do a wall of fire or something to entrap her classmates, but it looks like for Yuki's sake she won't hesitate to wipe the floor with them.
@Goldenzeal Yo that makes sense, now I think I understand what's going on on the plot, since this series is monthly (or more) I don't remember later or think on those details.
Thanks bro for taking the time explaining to me, much appreciated
"I will tell you, if you beat me." That's such a cliche villain line, that I normally would hate her saying it. But it's otherworld and she clearly, intentionally stole it from a movie or manga. The natives shouldn't know that line, so this must sound so awesome from their pov. The right BS-talk, at the perfect moment. That timing. I love it.
About the last panel:
そうだね in this particular case is "Let's see", not "you're right". But if you just change it into "That's right", it will sound way more natural.
Bitch's a psychopath, don't think MC will appreciate it very much. Now again all the set up makes little sense, he's friends with most kings and has more power than the human one but still did nothing to stop the war and while all the higher ups are drinking tea together the cannon fodder die by the hundreds just because, so who knows what morality anybody has here. . .
She could have tried asking them to stop fighting. It probably would have worked.
I'm guessing she is just putting on a show though. Well, unless she has gone full yandere, which is possible.