Rumble-Rumble Fruit

自然系「ゴロゴロの実」

By Aine · Published 2026-07-21 · Updated 2026-07-21

The Goro Goro no Mi (ゴロゴロの実) is the Logia-type Devil Fruit that lets Eneru generate, control, and become lightning, moving at the speed of a bolt and shrugging off any non-rubber, non-Haki attack. Skypiea's Aisa explains it to Kamakiri's crew flatly, mid-battle, as the reason he stands no chance (Vol. 29, p.41): 〝ゴロゴロの実〟．．．！！悪魔の実最強種「自然系」エネルがその能力者だなんて！！！ ("The Rumble-Rumble Fruit is the most powerful Devil Fruit of the Logia type. And Eneru has its powers!!"). VIZ renders the name Rumble-Rumble Fruit in every corpus occurrence, and the in-story claim that it's the strongest Logia in existence is delivered as flat narrative fact rather than a boast from Eneru himself.

Japanese	ゴロゴロの実
Reading	ゴロゴロのみ
Romaji	Goro Goro no Mi
Official VIZ	Rumble-Rumble Fruit
Literal	Rumble-Rumble Fruit
Used by	Eneru

Japanese

ゴロゴロの実

Reading

ゴロゴロのみ

Romaji

Goro Goro no Mi

Official VIZ

Rumble-Rumble Fruit

Literal

Rumble-Rumble Fruit

Used by

Eneru

Kanji breakdown

ゴロゴロ (gorogoro) is a Japanese ideophone (擬音語/擬態語, giongo/gitaigo — it does double duty) most commonly describing the sound of rolling thunder, though the same word also covers a rolling/tumbling motion (something ゴロゴロ轉がる, "rolling around") or a cat's purr, depending on context. Doubling it for Eneru's lightning fruit leans on the thunder sense specifically — pairing it with 実 (mi, "fruit") narrows the otherwise-ambiguous ideophone to its storm-sound meaning the instant it's read as a Devil Fruit name, the same disambiguating trick Oda relies on across this whole naming system.

Japanese original Aisa explains that Eneru wields the Goro Goro no Mi, the strongest Logia fruit, One Piece Vol. 29

ONE PIECE 第29巻 p.41 ©尾田栄一郎／集英社

VIZ English edition Aisa explains that Eneru wields the Rumble-Rumble Fruit, the strongest Logia fruit, One Piece Vol. 29 (confirmed repagination: JP p.41 corresponds to VIZ edition p.39)

Aisa explains that Eneru wields the Rumble-Rumble Fruit, the strongest Logia fruit, One Piece Vol. 29 (confirmed repagination: JP p.41 corresponds to VIZ edition p.39)

Every appearance in the manga

Vol / page	Japanese line	VIZ English
Vol. 29 p.41	〝ゴロゴロの実〟．．．！！悪魔の実最強種「自然系」エネルがその能力者だなんて！！！	THE RUMBLE-RUMBLE FRUIT IS THE MOST POWERFUL DEVIL FRUIT OF THE LOGIA TYPE. AND ENERU HAS ITS POWERS!!
Vol. 29 p.207	おそらく．．．＂ゴロゴロの実．．．！！	PROBABLY THE RUMBLE-RUMBLE FRUIT!!
Vol. 30 p.108	モクモクの夫メラメラの実スナスナの実ゴロゴロの実ゴロゴロの実	Plume-Plume Fruit Flame-Flame Fruit Sand-Sand Fruit Rumble-Rumble Fruit

Lines are byte-exact captures from a 43,000-pair bilingual corpus of the Japanese tankōbon and official VIZ Media edition.

Goro Goro no Mi is introduced the way this dictionary's strongest fruits tend to be: not through the user's own words, but through an ally sizing up the threat from outside the fight. Aisa's line at Vol. 29, p.41 doesn't just name the fruit — it ranks it ("the most powerful Devil Fruit of the Logia type"), a superlative claim the corpus never has Eneru himself make, which matters, because letting a bystander state the fruit's power tier as flat fact reads as far more credible than a villain's self-praise would. A second, near-identical confirmation follows a few chapters later (Vol. 29, p.207: おそらく．．．＂ゴロゴロの実．．．！！, "PROBABLY THE RUMBLE-RUMBLE FRUIT!!") from a different speaker theorizing about Eneru from a distance — the fruit gets named twice in the same volume, and both times by people who aren't Eneru, before the story ever needs him to announce it himself.

On the naming system, ゴロゴロ is a useful edge case: it's a genuine ideophone like メラメラ or バラバラ, but it's a double-duty one, equally at home describing a purring cat or a tumbling rock as it is describing thunder. Nothing in the bare word ゴロゴロ specifies "lightning" — the fruit name works only because Devil Fruits in this series are always read as ゴロゴロの実 rather than ゴロゴロ alone, and no Japanese reader would parse "the ゴロゴロ fruit" as anything but a storm reference once framed that way, since a cat-purr or tumbling-rock fruit wouldn't make for much of a superpower. VIZ's "Rumble-Rumble" makes the same narrowing move in English: "rumble" alone could describe thunder, a stomach, or an engine, but "Rumble-Rumble Fruit" reads unambiguously as a weather-and-power word the moment "Fruit" anchors it, mirroring the Japanese disambiguation-by-template almost exactly.

A glossary-style SBS page at Vol. 30, p.108 — cataloguing named Devil Fruits back-to-back for readers, the same page that documents Sube Sube's consistency — lists ゴロゴロの実 as "Rumble-Rumble Fruit" without variation, placing it alongside Flame-Flame and Sand-Sand in a single dense reference block. Between the battle-adjacent reveal and the reference-page confirmation, Goro Goro shows no naming drift anywhere in this corpus — a second data point, alongside Slip-Slip, for fruits that debut with a clean superlative reputation rather than a slow-burn comedic reveal tending to get translated once and left alone.