Responses
I read this YEARS ago so I don't remember anything but it sounds like this?
Her name is not rei, but it did get an anime adaptation
https://www.mangago.me/read-manga/may_i_ask_for_one_final_thing/
The FL has silver hair and she punches walls bc she's strong + feisty. It's one of those revenge nobility genres. I think at one point she punches everyone in ballroom and its very satisfying. I believe she has 1 or 2 brothers. Her name might be Rei? or smth. I think it's even an anime or donghua now? Thank you so much in advance!