Baron Omatsuri and the Secret Island

Baron Omatsuri and the Secret Island is a Japanese animated film released on March 5, 2005. It is the sixth film in the One Piece movie franchise. The film centers on the Straw Hat Pirates and their adventures on Omatsuri Island, which, at first, appears to be a fantastic resort, but they soon discover that it holds a dark secret.

Predator

 * Lily Carnation

Prey

 * Roronoa Zoro
 * Nami
 * Usopp
 * Sanji
 * Tony Tony Chopper
 * Nico Robin

Scenario
The Straw Hat Pirates, consisting of Monkey D. Luffy and his crewmates Roronoa Zoro, Nami, Usopp, Sanji, Tony Tony Chopper, and Nico Robin, arrive on Omatsuri Island. The island is ruled by Baron Omatsuri and his own pirate crew, The Red Arrows Pirates. The Straw Hats are challenged to a series of trials to test their strength. The Straw Hats at first enjoy the trials and the extravagance of the island, but soon notice many peculiar and disturbing things.

On the island, they also meet the Tearoom Pirates, who are actually a small family consisting of the father and captain Papa and his son and two daughters.

One-by-one, the Straw Hats begin to vanish. Finally, Chopper, along with the Tearoom Pirates, discover a giant flower stalk called Lily Carnation. They are confronted by Baron Omatsuri who offers them to Lily Carnation. The flower then tries to feed on Daisy, Papa's youngest daughter. Chopper rescues her, but is grabbed by the flower's vines and raised above the stalk where he finds his crewmates Zoro, Nami, Usopp, Sanji, and Robin are already in the process of being absorbed by Lily Carnation. Chopper is then dropped in and consumed as well.

Luffy, meanwhile, discovers that Lily Carnation feeds on powerful pirates that come to the island and the trials were just a way of testing the Straw Hats' strength.

Luffy then confronts Baron Omatsuri who taunts him with the fact that his crewmates have been eaten and will die one-by-one. Luffy eventually destroys the giant flower stalk, but it is then revealed that the small flower that Baron Omatsuri adorns on his shoulder is the true Lily Carnation. The flower then morphs into a monstrous form that consists of the absorbed bodies of the Straw Hats.

Lily is then killed by Papa and Luffy delivers the final blow to Baron Omatsuri, freeing the devoured Straw Hats.