Madame Outlaw

1842. Thaddeus murdered Estelle's brother, but only Estelle knows. When he convinces her family that they should be wed, Estelle goes through with the wedding only to steal Thaddeus' coveted map of the Oregon Trail, his horse-drawn carriage, and his stable boy. She then embarks on a nation-wide adventure with a growing band of criminals. Their destination? The West--where she can be free of the oppressive aristocracy she left behind. The only problem is that Thaddeus will do everything in his power to bring her back.

(Source: Webtoon)