Feudal Era Side Story - Boss Luffy Appears Again

In this alternate feudal setting, a portable-shrine race promises a fortune and a wish-granting treasure to its winner. Boss Luffy and his friends sign up as the Pinwheel Eatery team and recruit the master builder Franky to construct their entry. Standing against them is Thriller LTD, which methodically wrecks its competition, including teams modeled on the Flying Fish Riders and the Rolling Pirates. Along the way the group fishes a memory-blank Brook out of a river, only for him to recall that he once belonged to Thriller LTD before being cast into the water. The crew arrives at the workshop to find their shrine smashed.

Usopp spreads word of the race and introduces Mao, a new hire at the eatery. Chopper lists the contenders, and the Thriller Company crew, Hogback, Absalom, Perona, Kumashi, and Cindry, taunts the group before Franky vows to out-build them. That night Perona's negative hollows demoralize the Flying Fish Riders until Duval destroys their own shrine, with Robin watching from afar. After Usopp reels Brook in, the skeleton settles in among the villagers. The rivals then turn invisible with Absalom's power to wreck the Rolling Express shrine, and Luffy, Usopp, and Brook fail to stop it. Finding Mao under zombie attack and Franky beaten, Brook recovers his past and walks away from the group.

This is the opening half of a two-part story that wraps up in the following episode, making the pair the only Boss Luffy specials that do not stand alone. The episode introduces Mao and carries no eyecatchers. A special continued end card spelling out the Japanese for to be continued is used, last seen back in Episode 2. It also features the final in-character next-episode preview before the narrator takes over.