is one piece episode 745 filler?

Somewhere at sea, a group of pirates form an alliance to take revenge on Luffy for taking down Doflamingo's market, which they had relied on. They also plan to ransack Dressrosa if Riku has become king again.

On the Yonta Maria, Bartolomeo prepares to complete the agreement for him, Cavendish, Sai, Ideo, Leo, Hajrudin, Orlumbus, and each of their crews to serve under the Straw Hat Pirates. He pours cups of sake for himself and the six captains before emptying the rest of the sake into a very large cup for the Straw Hats.