Grand Line,
A warship sailed beneath a flag that didn't bear the word "Justice,"
but instead flew a flag marked with a spiral leaf, representing Konoha from another world.
As for why it was a warship, Sarutobi Hiruzen had naturally asked Sengoku to requisition one,
and Sengoku had naturally refused at first. What kind of business was it for a Shichibukai to use a Marine warship?
Then Sarutobi Hiruzen called the Five Elders.
Sarutobi Hiruzen had golden weights wrapped around all four limbs and was lying face down,
with a ten-meter-high golden ball strapped to his back. The ship rocked with every push-up he did, showing just how heavy it was.
All that gold had indeed come from the City of Gold.
Gold in this world was much denser than iron, second only to Seastone.
Sarutobi Hiruzen couldn't get his hands on so much Seastone, but gold was available, making it very convenient for training.
"Huff."
Sarutobi Hiruzen let out a long breath and removed the weights from his body,
then circulated Immortal Breathing while devouring a feast, as Nico Robin kept bringing him Sea King meat.
The nutrients unique to this world transformed into highly concentrated energy, nourishing Sarutobi Hiruzen's body and making his strength leap forward.
"It's starting to slow down..."
Sarutobi Hiruzen sighed slightly, feeling the strength surging inside him.
"The rate at which my physical abilities are improving."
Compared to when he had first arrived in this world, Sarutobi Hiruzen could once improve his physique several times over. Now, after a training session, his bodily strength no longer surged forward by leaps and bounds.
"My physical abilities were already top-tier in the Naruto world..."
"In the pirate world, I'd be about on par with a pirate worth over a hundred million."
Sarutobi Hiruzen thought to himself.