Great-Grandmother is Nine Years Old(Tiny Matriarch Reborn)

Audrey Blackwell from the Republican era unexpectedly transmigrates into the body of a nine-year-old girl in the modern world. Finding the once-prestigious Blackwell family now in decline, the ancient ancestor becomes the family's young matriarch. Using her vast network of connections from her previous life, she begins rebuilding the family empire and restoring it to glory.