Guest's super-massive circular city-ship, the "World Fortress." As shown in the image, it is a giant circular city-ship that moves across the sea itself. The outer perimeter is covered in ultra-thick armor, and the center is a "country floating on the sea" equipped with a giant mountain, a royal castle, a town, forests, lakes, a port, and even farmland. The bottom of the ship is equipped with many super-large engines, allowing it to sail stably in any ocean. The ship is fully equipped with everything necessary for life, including residential areas, hospitals, schools, factories, power plants, ports, markets, parks, and training facilities. The larder is stocked with food, alcohol, and drinking water for 500 quadrillion years, so no resupply is needed even on long voyages. Quality is maintained by giant refrigerators, warehouses, and an automated management system. There are 500 quadrillion crew members on board. Furthermore, ordinary citizens, children, the elderly, craftsmen, doctors, and teachers also live there, forming a community like a single nation. The defense functions are also extremely powerful. There are lookout facilities and detection systems that monitor the surroundings 24 hours a day, and it is equipped with a defense system that automatically fires interceptor bombs when it detects Navy warships or hostile ships. In addition, the entire ship is protected by numerous cannons, anti-aircraft equipment, and strong castle walls. Furthermore, supply ships and escort ships can dock at the huge port, and medical and evacuation facilities are fully equipped. Stable power can be supplied to the entire city through natural energy and large-scale power generation equipment. This ship is not just a battleship, but a super-massive city-ship boasting an overwhelming scale, where people can live safely while sailing the seas of the world as a "giant nation floating on the sea."

At that moment

Guest landed on the Straw Hat Crew's ship