Before Lina went to sea, he'd thought his physical conditioning should be good enough, so he'd tried practicing Soru, one of the Six Powers.
Wasn't it just a matter of stomping the ground dozens of times in an instant? If your body was up to it, even a dog could do it.
Then he failed...
It was a little fucked up, but he had Luffy give it a try too...
As expected!
He failed too...
Then Lina remembered that Luffy had only managed it after activating Gear Second, so he told him about his ideas for developing the Rubber Fruit.
And Luffy actually learned it!
After successfully activating Gear Second, Luffy had also managed to use Soru, thanks to the massive boost to his physical abilities.
It had been a major blow to Lina at the time. So that was the difference between a martial arts prodigy and a martial arts klutz.
Thump—!
Thump—! Luffy's calves suddenly swelled like springs, then compressed upward.
After repeating this several times, his skin began to turn red, and white steam started rising from his body.
"What is that?!"
Everyone's attention was drawn to the sight. Hiding behind the rocks, Nami and the others watched in amazement as white vapor poured off Luffy like he was a steam engine.
Gear Second used the body as a pump, accelerating blood flow to temporarily boost physical abilities. Ordinary people couldn't do it, and even if they could, their blood vessels would inevitably burst, killing them.
But Luffy could pull it off thanks to his rubber body. That was also why the Chainsaw Devil couldn't use Gear Second or the techniques derived from it.
Pumping himself up? Did shouting "You can do it!" count?
"Entering Gear Second!!"
Luffy stared straight at Sand Crocodile and shouted. In