is one piece episode 614 filler?

Mocha runs away with the candy while the children are on hot pursuit. Chopper, Nami and Robin try to fend off the children but they manage to break through them making Mocha leave herself with no choice but to eat the candy.

She eats the candy and Chopper watches with a shocked expression. Zoro and Tashigi are running away from the poisonous gas while Tashigi wakes up and admires Zoro's sword known as Shusui which he got from the samurai known as Ryuma at Thriller Bark.