This is a story of Luffy in an alternate reality. While sailing on the sea by himself, a strange bird crashes into his small boat. He looks up to find a giant ship where a girl named Ann has been captured. It seems like the bird belongs to her.

Luffy arrives at the ruins of Oden Castle following Law and finds the graves of his friends, Kin'emon and the others. As Law starts telling the already-stunned Luffy about the creepy story of Kin'emon's ghost, Luffy sees it coming towards him!