Lore:

This game is about a pirate. Her ship was destroyed by rival pirates. Every survivor of the battle was captured, except her. Because of superstition, they refused to keep her aboard, but they could not simply let her go.

The captain of the rival crew decided to imprison her on an abandoned, fortified island nearby, using one of their boats, planning to return later...

Using old cannons, she blasts through walls to reach the sea and escape.