Female Cousins

A rich family have an old palace which they want to sell but they can't but they can't because the palace would put a curse of whomever try to sell it, after trying to sell it the whole family die in an accident, only there little girls and their aunt survive this terrible fate. When the girls grow up they decide to sell the palace and again the palace put a curse on them by turning them into three young men, now the girls in their new gender and form have to cope with the new life and learn to act how to act like men.