is one piece episode 553 filler?

Hody Jones asks Shirahoshi about the meaning behind her statement. Shirahoshi explains, saying that Megalo told her as Megalo witnessed everything that happened on that fateful day since he was part of Neptune's army.

Jinbe comments that he is in disbelief and asks Shirahoshi why she kept it a secret but Shirahoshi interrupts before Jinbe could complete his question. Holding back tears, Shirahoshi says that it is not what her mother, Otohime would have wanted as citizens would hold a grudge against Hody afterwards.

Shirahoshi recalls her last promise to her mother.