I don't remember the title, the female mc transmigrated into a cannon fodder or someone like that and her brother's who her got reborn and pampered her but she (atleast in summary) says she isn't their sister Ps I think she is the same but meh summary doesn't says so.
Nope it's not this one, she had many brothers like in the summary it was written brothers rather than brother and they are blood related sibilings I found it It's ' I turned wild after being doted on by the big bossess'
Hmmmmm, I have an idea but I might have misunderstood the request. In I Turned Wild After Being Doted On By The Big Bosses: MC is transmigrated and brothers are reborn. They're blood-related but I don't remember her having any doubts about that. PS: oh lol, i refreshed a bit too late. Glad you found it tho!