In the seven-sea world where the kingdom's navy is totalitarian, a weak young man named Ryan becomes a free pirate by chance. A broken ship and several strange partners start an adventure full of laughter. They rob, cheat each other, battle wits with all kinds of strange characters, and get involved in a magnificent sea battle surrounding lost treasures, throne conspiracies and family secrets. Life and death, justice and freedom, friendship and betrayal collide fiercely in the wind and waves. After going through many difficulties and dangers, everyone grows into a more complete self, and the ending ends happily.
