One Piece Film: Strong World

Shiki kidnapped Nami because he was impressed by her meteorological skills. As a skilled navigator, Nami's ability to understand and predict weather patterns was exactly what Shiki needed for his ambitious plan to navigate the floating islands and execute his attack on the World Government. He wanted to force her onto his crew as his personal navigator.

Earlier, Shiki destroyed marine ships to send a warning, demonstrating his power and boldness before seeking to add capable crew members.

Shiki possesses the power to make himself and anything he touches float. This gravity-based ability allows him to levitate objects, people, and even entire sections of land. He uses this power to create the floating island, control the genetically enhanced animals, and battle the Straw Hats by sending them and their surroundings flying into the air.

The opening scene shows Shiki destroying marine ships by making them float and crash, establishing his dangerous abilities early.

The IQ plant is a special botanical creation that can instantly make animals evolve and gain extraordinary strength. Shiki stole the IQ plants from Xiao's village to conduct his experiments on the island's wildlife, creating dangerous hybrid creatures that the Straw Hats must fight. The plant is also the only cure for the poison that affects Nami and the village grandmother.

Dr. Indigo demonstrates IQ's power with Billy the bird, showing how the plant instantly evolves animals to gain new abilities like generating electricity.

Nami was poisoned when she tried to destroy the protective plants surrounding Shiki's palace. She was attempting to clear a path for the Straw Hats to advance, but the plants were poisonous. Shiki trapped her near the vegetation, and she succumbed to the toxins while trying to complete her mission.

Xiao had warned Zoro and Chopper about poisonous plants encircling the village that were causing illness among the villagers.

The message Nami recorded was not a farewell as the crew initially thought, but rather a coded SOS, an urgent request for the Straw Hats to come and rescue her. The revelation comes at the end when Luffy learns the truth and tries to listen to the full message, but Nami embarrassedly grabs the tone dial before he can hear it all.

The crew replays what appears to be Nami's farewell message, which triggers Luffy's anger and him storming off, hinting the message was more urgent than it seemed.

Luffy defeated Shiki by using an electric charge created by Usopp. During their final confrontation, when Shiki was focused on the battle, Usopp delivered an electric charge that knocked Shiki to the ground. This allowed Luffy to gain the upper hand and secure victory against the powerful pirate.

Earlier, Billy the electric bird demonstrated the danger of electricity in this movie, foreshadowing its use against Shiki.

Shiki planned to unleash the island's evolved animals on East Blue to force the World Government to surrender. By demonstrating this massive display of power and threatening an entire sea, he intended to topple the World Government and establish himself as the ultimate pirate threat. The attack on the floating island's village was meant to show he was serious.

Shiki's opening attack on marine ships served as a warning to the World Government about his intentions.

After Shiki's defeat, the floating islands lost their mystical properties and crashed down into the sea. The Straw Hats escaped using Shiki's own pirate sail as a parachute, while villagers flew away on wings that sprouted from their arms due to IQ plant exposure. The Marines then arrived to capture the defeated pirates.

Shiki's power kept the islands floating throughout the film, so his defeat logically meant the islands would fall.

The Straw Hats escaped by using Shiki's own pirate ship sail as a makeshift parachute. After defeating Shiki and rigging his palace with explosives, the crew made their escape as the island began falling. Luffy was rescued by Billy, who flew him to safety while the rest of the crew escaped on the Thousand Sunny.

Earlier, the Straw Hats had stolen Shiki's sail during their trick to make him steer his ship toward the island.

Billy, the electric-evolved bird created by Dr. Indigo, was rescued by Nami during the chaos at Shiki's base. Nami protected Billy from harm and eventually the bird became a key ally, helping locate Nami when she was poisoned and assisting in destroying the protective plants around Shiki's palace. Billy also rescued Luffy during the final escape.

Nami chose to protect Billy when Dr. Indigo was electrocuted, showing their early bond that would pay off later.

Xiao's village was saved when the Straw Hats defeated Shiki and retrieved the IQ medicine. After Nami was cured of her poison using the IQ plant medicine, the Straw Hats ensured the village had access to the cure for the grandmother and other sick villagers. Shiki's defeat also meant his poisonous plants surrounding the village were no longer a threat.

Xiao led Zoro and Chopper to her village and explained the village's plight, establishing the stakes for the crew's mission.