"Boundman Form?"
Seeing the Haki patterns wrapped around Luffy's body, Zephyr quickly guessed the purpose of this move.
"Using Armament Haki hardening to increase the rubber's tension for greater explosive power? Not a bad idea, but..."
Watching Luffy bounce up and down in Boundman Form, Zephyr swung his mechanical arm, whipping up a gust of wind, and could not help sneering.
"You can't even stand steady. Are you here to fight or to make people laugh?"
"You'll find out soon enough."
A frenzied smile appeared on Luffy's face. The next instant—
Boom!!
Extreme elasticity exploded against the ground, sending shattered rocks flying as Luffy shot forward like lightning. At the same time, he clenched his right fist, his wrist compressing inward layer by layer!
So fast!
Zephyr's pupils contracted in shock. He could actually unleash such explosive speed!
The mechanical arm fitted with large amounts of Seastone was hard, but it was indeed far too cumbersome.
Caught off guard, Zephyr had no time to swing the Crusher, but he still raised his blackened left forearm in front of himself.
"Gum-Gum King Kong Gun!!"
Veins bulged across Luffy's forehead as his fist, packed with terrifying elasticity, erupted instantly!
Boom!!
The moment the fist collided, a streak of dark crimson lightning suddenly exploded!
Zephyr's left arm twisted beneath that overwhelming force, driving his fist viciously into his chest!
"Pwah!"
Conqueror's Haki Infusion!!?
Boom!!
Eyes wide with fury, Zephyr spat out a mouthful of blood. His entire body flew backward like a cannonball for over a hundred meters before crashing brutally into a crimson hill!
The small hill shattered on impact, spraying rocks everywhere and raising billowing clouds of dust!
"Cough! Cough cough!!"
Several coughs came from within the thick smoke. After a burst of air scattered the dust, Zephyr's expression turned ugly