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An Zengaiina is a prisoner on Level 2 of Impel Down.[1][2]


Zengaiina is a man with fair skin, short light brown hair, tiny black eye irises, hollow sunken black eye baggages, and a stitch patterned scar on the upper right side of his forehead. He wears the standard white prisoner outfit with black horizontal stripes, trousers, and white shoes.[1]


Though Zengaiina hated Impel Down, he was too afraid of the Sphinx to leave his cell when Monkey D. Luffy and Buggy tried to break him and his fellow prisoners out.[1]

Abilities and Powers

Not much is known about Zengaiina's abilities, however he is dangerous enough to be imprisoned in the great prison although only on the second least secure level.[1]



At some point in his life, Zengaiina was sentenced as a criminal and imprisoned on Level 2 of Impel Down.[1]

Impel Down Arc

He and other prisoners were freed from their shackles and cells by Buggy and Luffy. However, after hearing the roar of the Sphinx, he chose to stay in his cell out of fear.[1]


  • His name is a pun on anzen ga ii na (安全がいいな? meaning "safety is good"), referring to his fear of leaving his cell.
  • Stephen Paul, the official VIZ translator, informally translated Zengaiina's name as "Ratherby Seifer".[4] This translation was later used in the 7th popularity poll.[5]


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 One Piece Manga and Anime — Vol. 54 Chapter 528 (p. 15) and Episode 425, Zengaiina debuts.
  2. 2.0 2.1 Vivre Card - One Piece Visual Dictionary (EX Characters: Summit War Saga Vol. 5 #0578).
  3. One Piece Manga and Anime — Vol. 56 Chapter 549 (p. 14) and Episode 452, Buggy comments that the other prisoners that escaped from Impel Down holds a bounty higher than his.

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