How Luffy Invented Gear 4: the 2-Year Ruskaina Training Secrets
Q1: What exact episode does Luffy use Gear 4 for the very first time?
A1: Luffy transforms into Gear 4 Boundman in Episode 726 of the anime, titled "Gear Fourth! The Phenomenal Boundman!", which adapts the events of manga Chapter 784.
Q2: Why does Luffy have a 10-minute cooldown after using Gear 4?
A2: Gear 4 requires a sustained, massive coating of Armament Haki across widespread muscular surfaces. This excessive consumption burns through his spiritual reserves, causing his Haki to shut down completely for ten minutes once the transformation expires.
Q3: Did Rayleigh teach Luffy Gear 4 directly?
A3: Rayleigh did not design Gear 4 directly. He instructed Luffy in the core fundamentals of Haki on Rusukaina. Luffy synthesized those teachings on his own to construct Gear 4 as a method to defeat the giant beasts inhabiting the island.