Is ONE PIECE episode 136 filler?
Filler Yes, episode 136 of ONE PIECE is filler.
#136
Zenny of the Island of Goats and the Pirate Ship in the Mountains!
ヤギの島のゼニィと山の中の海賊船！
Aired 8 Dec 2002
Mochibayo compiled this list from MyAnimeList's labels, because MyAnimeList's episode data is not reaching us at the moment.