After his hearty laugh, Uchiha Mu returned to normal. He knew that reproducing the blueprints for things like photolithography machines alone would take quite some time. There was also the testing to consider. Something like a mobile phone was probably still a few years away.
For now, he needed to focus on the present. The Land of Demons was newly acquired territory, and he couldn't neglect it. Otherwise, its lagging development alone could drag down the happiness level. With such generous system rewards at stake, he couldn't let the Land of Demons hold them back.
The Terracotta Warriors and the Shrine definitely had to stay. Once peace prevailed on the surface, they would become a major source of revenue. But what should the Land of Demons do now? It lacked the distinctive features of the Land of Rain and the Land of Whirlpools. Its vast forests also meant the nutrients had been drained from the soil, so farming would have to wait a few years.
Before leaving the Land of Demons, he would first clear out large tracts of farmland. Once the soil became fertile again, they could start planting. This place was perfect for growing all kinds of melons and fruit, so he would set up canned fruit production here.
As for the present, he would build a factory first and gather the idle workforce there. It would supply the surrounding countries. Even if no one bought its products, Kakuzu's Trading Company could take them off their hands. That would be the plan for now.
Hashirama hurried back to Konoha the day after their meal, while Uchiha Mu stayed to wait for people to arrive. He had already sent word back, and someone would come to take over here. The Hundred-Clan Shinobi Nation would just have to work him