is one piece episode 543 filler?

The Sun Pirates get the Eternal Pose to Koala's hometown. Koala has been given a new look and has lost some of her trauma, as Aladine notes that trauma is not something you get over so easily.

Koala sails with fish-men and learns that they are not like the Celestial Dragons. Arlong does not get along with Koala, while Jinbe changes his views about human beings, recalling what Otohime said about them and realizing she may be right.

Koala's time with the Sun Pirates becomes fun as all the members (except Arlong) get along. Koala reaches her hometown and Fisher Tiger accompanies her.