In the vast multi-island sea where magic and steam engines intersect, Hill Cohen leads a noisy and loving pirate group with different personalities, diving into the waves of intrigue and adventure. From gold and silver secret treasures and magical relics to ethnic conflicts and secret alliance wars, he is accidentally involved in the whirlpool of destiny across the east and west continents. During the journey, close brothers encounter betrayal and continue to grow in humorous adventures; when freedom and friendship are challenged by power and interests, the contradiction becomes increasingly irreconcilable. After experiencing shocking adventures and struggles, they understood the true meaning of freedom amid intrigues and crises, and gained the most profound brotherhood.
