is one piece episode 951 filler?

Zoro and Hiyori are ambushed by Fukurokuju's group of ninjas. Although Zoro defeats most of the ninjas without difficulty, a stronger ninja, Fujin, stands in his way.

Still, Zoro cuts down Fujin unharmed. He and Hiyori seek shelter at a house, where he plans to get the Shusui back to prepare for the Onigashima raid.

Orochi berates Fukurokuju for allowing Zoro to get away. To appease him, Fukurokuju states that he managed to capture another criminal, Law, who was brutally tortured and chained to a wall.

They set up wanted posters of all of the Straw Hats and their allies.