is one piece episode 818 filler?

As Sanji sits outside Pudding's room, wallowing in depression after overhearing her intention to kill him and his family at their wedding tomorrow, Pudding continues mocking him in front of Reiju. However, Reiju starts to get weaker, and Pudding prepares to get assistance for her since Reiju needs to be present at the wedding.

Noting that it was impressive how Reiju managed to run away from her for a bit after being shot in the leg, Pudding reaches into Reiju's head and pulls out a roll of film containing Reiju's memories with the power of the Memo Memo no Mi, focusing on Reiju's memories of b…