Dawn had always placed great importance on technology. Even though scientific research held a somewhat awkward position in this world, he had never seen it that way.
That was why the Ishtar Kingdom had begun developing in a broad range of fields long ago, starting from its specialties in biology and botany.
Later, they had seized a wave of technology from the Vinsmoke Family, along with lunar technology and Tom's Pluton technology.
These technologies had been acquired, absorbed, and innovated upon step by step. As the number of scientists grew, they had even formed a virtuous cycle.
For example, the highest-grade robots on Sky Island were now machines possessing intelligence and emotions. They were the achievement of that old man who had been choked to death on the cover page depicting Enel's journey to the moon.
Those intelligent robots were now the main workforce building Pluton. People like Tom handled technical breakthroughs and research, while the robots, after receiving orders, directed the non-intelligent robots in carrying out the actual work.
At the same time, this mechanical arm had not been specially developed for Zephyr. It was merely one of the technologies Dawn had established for research and development.
After all, quite a few of the escaped slaves had lost arms or legs. Don't ask how those missing legs had escaped—strapping a wooden stick on as a leg was far too common in this world.
Dawn had developed these mechanical arms for them as a whole. Even among the Thunder God Pirates, there were occasionally people with missing limbs who were fitted with mechanical prosthetics.
They were not as extravagant as Zephyr's Seastone arm, but they still had every other function one could want. The weapons inside the arms could also be changed according to the user's fighting style.
Combined with