One the Woman Season 1 Episode 1

Yeon Ju is an elite prosecutor, and her goal is to become a chief prosecutor. Therefore, she wants to investigate and catch the fraud that the deputy chief of her division failed to. Meanwhile, Mi Na is left out of her family and in-laws just like any other day and attends an art auction alone. As they are fated to, Yeon Ju sees Mi Na and gets shocked as she looks exactly like her.