One Piece / episode 58
is one piece episode 58 filler?
yesit's filler
title: Showdown in the Ruins! Tense Zoro vs. Eric!
The Straw Hat Pirates reach the top of the mountain and the dome-shaped building. The ground beneath them crumbles, leaving them in an underground area.
Luffy notices a piece of collapsed ceiling that features a painting of a Sennenryu. At first, Apis believes that the Dragon's Nest was located on this island, but upon further inspection of the ceiling paintings, Nami deduces that the Dragon's Nest was located back at Warship Island, but sank into the sea.
They are convinced that the island was actually the royal court mentioned in Bokuden's story. Apis asks Ryu where the Dragon's Nest was.