After Emir and the Hat Pirates leave the island where Dark Lightning is located, they move deeper into the Grand Line. They use a specially designed submarine ship to explore mysterious islands under the sea. These islands are known as the home of ancient civilizations and legendary creatures hidden in the depths of the sea.
As the team explores this new world under the sea, they discover ancient submerged ruins, mysterious temples, and legendary sea monsters. This episode reveals the secrets hidden beneath the waters of the Grand Line, while showing how Emir's leadership adapts to this new challenging environment.
The team encounters an unexpected threat during their exploration under the sea. The powerful queen of the undersea kingdom perceives the presence of the Hat Pirates and Emir as a threat and declares war against them. This kingdom has mysteriously communicated with other regions under the sea and is armed with a large submarine army.
To deal with this great threat, Emir and the Hat Pirates are forced to use their strong friendships within the team and their bonds with each other. After a tough war, peace is achieved with the kingdom, and the team continues to explore the world of secrets under the sea even more deeply.
After their adventures under the sea, Emir and the Hat Pirates come to the surface and set a new goal: to find the legendary "Kingdom of Gold". The Kingdom of Gold is known as a mysterious island believed to hold a legendary treasure and unknown power. However, they face many obstacles to achieve their goals.
Trying to defeat their enemies by using their new powers they gained in the depths of the seas, Emir and the Hat Pirates also try to unravel the mysteries of the Golden Kingdom. However, old enemies and the shadow of the World Government pursue them, making the journey even more challenging.
During their continuing journey towards the Kingdom of Gold, Emir and the Hat Pirates fall into the middle of a great conflict. They have become targets of the World Government and other powerful pirate groups. In the final conflict, Emir's leadership abilities and the Hat Pirates' ability to work together are maximized.
At the end of the conflict, Emir and his team reach the Kingdom of Gold and discover the legendary treasure. However, the secrets that protect this treasure and the new dangers they encounter will shape their future adventures. This episode is not the end, but a new beginning of the adventure of the Hat Pirates, led by Emir, in the depths of the seas and on the legendary islands.
Once they reach the Kingdom of Gold, Emir and the Hat Pirates begin to unravel the mysteries of the island. The treasury houses not only riches but also the ruins of a lost civilization. While Emir tracks down the leader of this ancient civilization, important secrets about the island's past are revealed.
Legends circulate on the island that the Kingdom of Gold is a protective spirit. While Emir and the Hat Pirates track down this spirit, they discover a great tragedy in the island's past. This episode follows Emir's personal journey as he tries to unravel the mysteries of the Kingdom of Gold.
When their adventure in the Golden Kingdom ends, Emir and the Hat Pirates enter a new era. However, this time they have to part ways. While the team members choose their own path, Emir sails alone into the depths of the seas. The Hat Pirates' bonds are never broken as they each continue their own adventures.
This episode tells about Emir's farewell moment with his team and their new beginnings, and how each character charts their own path. After their adventures in the depths of the seas and on unknown islands, the story of the Hat Pirates closes an era and moves on to a new one.