One Piece Prior to Youth

Before there was Diggy, Luffy's brother, his first unofficial crewmate, a boy who vanished into the sea, there was Cass.
Cass, or Casey, is Diggy's mom. All she wants is to go home. Yet, the world itself seems determined to make this new place her home. She doesn't want to be a pirate, god damn it!

This story follows 'One Piece Film Youth', I don't think you need to read that first to understand- but I recommend it! Once again, I have posted this story on AO3, it is by me- not stolen!!