So there's this novel the female protagonist was reincarnation into another body. Her past self was a mecenary queen, she had her own organization. So her new body's father has been missing for some time. Her mother is very beautiful. Her father was a genius so the previous owner of the body was kinda of like a disgrace to their family because she had no talents. So her father's family didn't like her and her mother especially when her father got missing. The male protagonist is from the capital a big military family , he liked her previous self before she died he later got to know she got reincarnated . I think her name was Su nicknamed S
Seems interesting, but you probably should give more details such as whether it is Chinese, Korean, Japanese novel..
I dont know, just a guess, I dont remember quite well tho, but I feel some bits coincide with https://www.novelupdates.com/series/reincarnation-of-the-businesswoman-at-school/ MC is from a dark killer organization. Her new identity is Gu Ning. ML is the youngest major general or something Father missing in her life.