Name: Episode 421 — The Friends' Whereabouts! A Princess Negativity and the King of Demons!
Released: 2009-10-11
Duration: 24 min
Rating: 7.4
Cast: Mayumi Tanaka, Kazuya Nakai, Mari Yaguchi, Akemi Okamura, Kappei Yamaguchi

One Piece (1999 – ...)

1999 • 23 seasons • Action & Adventure, Comedy • TV-14

On August 8, 2026

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45.2 Attention Score

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Episode 421 — The Friends' Whereabouts! A Princess Negativity and the King of Demons!

Released: 2009-10-11 • Action & Adventure/Comedy/Animation

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Zoro is held against his will by the pink-haired princess of bad vibes, Brook gets mistaken for the king of darkness, and Luffy continues to eat his way toward a reunion with Fire-Fist Ace!

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Episode air date	11.10.2009
Episode runtime	24 min
Episode rating	7.38
Genres	Action & Adventure / Comedy / Animation
TMDB series rating	8.8
IMDb series rating	9.0
Series status	Returning series
Age rating	14+
Country	JP

One Piece (1999 – ...)

Episode 421 — The Friends' Whereabouts! A Princess Negativity and the King of Demons!

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