Roronora Zoro was a bounty hunter for years but one day got caught and persecuted for Protecting an Older Woman And her child from harrassment, His punishment was a very harsh one because the very person he Went against to protect the lady was one of the richest people in the area, His punishment was to be hung on a giant X with no food or drink. While he was there a little girl constantly came secretly to Feed him and give him water. After a few years a mysterious teenage boy came and freed him and He decided that he wanted to become a pirate along with that kid instead of staying a bounty hunter, After Two Years of constant adventuring and battles during one of their rest periods, Zoro Decided to Go on his own For a while and see what these Villages he heard about where all about.
by 
