yeah this feels like a good ending to the story, i guess the next 7 chapters are either an epilogue or side stories.
either way, i'm happy to see this ended well, i also heard the author may be working on something new now that the anime is done.
it's a way for her to let out pressure.
it's very normal for abused children to abuse other children they see as weak as a way to cope with their own problems.
this obviously doesn't make it right, but it's mostly a product of her essentially growing up in a constantly hostile and demanding...
this is a common trope in otome game manga (i'm not sure if it happens in real otome games, because some tropes like the existence of a villainess are just made up).
you usually have 1 older character, usually a teacher, one shota character and then a bunch of diverse ikemen.
iirc the artist mostly does BL. so if you're into that he has some series up on the site but sadly this is the only manga he drew i'm aware of that isn't BL.