It feels like typical impersonation. It wouldn't go very far with that much with the power of the real Halfheim, but I guess that's why the author mixed in the sister's summoning. They'll be either summoned by the kingdom to destroy Halfheim or by the fake Halfeim to destroy the kingdom.
He's still in his post-chuuni phase so he is rejecting anything he found cool during his chuuni phase, at some point he'll get to adulthood and notice some things just stay cool to you and some things you never stop liking.
There could be several reasons:
He was, but things change with time
He just didn't express it
The classmates were given the ability to protect themselves, but they fell from their own doing (overconfidence, misplaced trust, etc)
They willingly accepted at first, maybe some felt pity for the...
Of course the protagonist is also reincarnated. It's going to be the same as usual with the selfish girl who liked the game a tad superficially and got her ideal reincarnation before falling due to her own hubris.
No killing and mercy disguised as torture make for a soft revenge. There is of course the loss of status and the banishment, but I feel like it doesn't suffice to repay years of humiliation.
I hope the system won't take too much space and there won't be romance.
Usually, I don't mind romance but I'm tired of romance messing up the few good proper villainess stories.
Selling precious nectar is a dangerous plan, though. Addicts could do anything for it, merchants would definitely try to find the source, and even a local noble could arrest and potentially torture her to find the source of the nectar.
Anyway, I haven't been here in a while, and I'm glad to see...
As much as I disagree that it counts as culture, as that's very much cultural, I do agree that it's not really part of Japanese culture. It's considered being very pure not to have sex before marriage in Japanese culture as well, so there's no way Makoto wouldn't know this. He wasn't a sheltered...
I'm glad she's getting some strength back, of course, but most of all I'm glad she's getting better at imposing her will. She does have a habit of letting herself be dragged around, especially since she lost her skills, so I'm happy.