....Was he that rough with her? The brother, I mean. Wasn't most of that just strict punishment to bad behavior? A bit over the top maybe but I dunno, maybe because before the reincarnation she already did the villainess style evil stuff? and he's a knight, who seems very strict, and at least half of the things he did reminded me of training... and then he sends her to actual training after the great chase
I get that it's really over the top, but I'd hold on on judging the dude as an horrible abuser until more info about him is out in the manga, maybe he just grew up being trained and disciplined like that(he's a knight, military ain't very chill with training usually) and is doing what he learned...
If it's just like that, telling him that what he's doing is going overboard and properly tell him why would most likely solve the situation, unless he's really stubborn, if so then calling him that is proper yeah.
There's also the possibility he sees it as fine because he does that to himself if he messes up, having high standards for oneself he would expect others to be the same and follow the same punishment in case of lack of discipline. And since she's his little sister, he obviously would expect more of her than he would a random person.
Or he may really just be an abusive sadic big bro. Or just a person who likes applying spartan methods of training and discipline.
But regardless of what he actually is, I dunno, jumping to so many conclusions when barely any info about him is known is really premature?!
Tl;dr: Big bro may be bad bro, but maybe wait for info before calling him evil abuser or malevolent?! Ain't it too soon for that, people?!
(I have no idea why this annoyed me so much I made a wall of text, but here it is....) o3o"