One Piece: Mamore! Saigo no Dai Butai

For many years, Ex-Marine Lieutenant Randolph and his troupe have put on a play aboard his ship. Having lost his family to pirates, Randolph wishes to put on plays that will give courage to those who have also lost their loved ones to pirates. Unfortunately, Randolph must retire soon, and he is now giving his last performance. Luffy and his crew come to see the play, and somehow manage to take part in it themselves. But from Randolph's past comes a vengeful subordinate with a diabolical plan who has finally become commander in order to capture Randolph. Luffy and his nakama now must prove to the people that not all pirates are scum, and protect Randolph's final farewell performance from the bitter commander. (aired after Episode 174)
(Source: ANN)

One Piece

Gol D. Roger was known as the "Pirate King," the strongest and most infamous being to have sailed the Grand Line. The capture and death of Roger by the World Government brought a change throughout the world. His last words before his death revealed the existence of the greatest treasure in the world, One Piece. It was this revelation that brought about the Grand Age of Pirates, men who dreamed of finding One Piece—which promises an unlimited amount of riches and fame—and quite possibly the pinnacle of glory and the title of the Pirate King.
Enter Monkey D. Luffy, a 17-year-old boy who defies your standard definition of a pirate. Rather than the popular persona of a wicked, hardened, toothless pirate ransacking villages for fun, Luffy’s reason for being a pirate is one of pure wonder: the thought of an exciting adventure that leads him to intriguing people and ultimately, the promised treasure. Following in the footsteps of his childhood hero, Luffy and his crew travel across the Grand Line, experiencing crazy adventures, unveiling dark mysteries and battling strong enemies, all in order to reach the most coveted of all fortunes—One Piece.
[Written by MAL Rewrite]

One Piece: Mamore! Saigo no Dai Butai Franchise