Snow White in the Ancient World

Mu Zen is a not so ''normal'' girl, though always mistaken as a fragile demure girl due to her appearance; Hair as black as ink, skin as fair as snow, rosy cheeks and rosy lips and of thin stature, the epitome of beauty. This femme fatale lies a secret as the famous ruthless leader of the underworld organization "Zen". But what happens if she the leader of Zen dies while on vacation with her companions and transmigrated as a useless 5th daughter of General Wu in Shang Dynasty?!