Natsuki settled Zero-Tails in Hozuki Castle.
Zero-Tails was far too weak now.
Even if he absorbed it with the Black Holy Grail, it would not provide much Chakra.
The best option was to let it gradually grow stronger in Hozuki Castle.
Natsuki returned to Konoha.
After giving it some thought, he went straight to the Research Department.
Orochimaru's newly established Research Department was located not far from the Hokage Building.
Though it was called the Research Department, it was actually a building, slightly smaller than the Hokage Building, with three floors in total.
The third floor was Orochimaru's Laboratory, dedicated to researching Wood Release.
The other two floors housed other laboratories.
Natsuki had never paid attention to what experiments they conducted, so he did not know.
After all, the head of the Research Department was Orochimaru, the Fourth Hokage.
"Teacher."
Natsuki knocked on the door and called out.
A moment later, the door opened.
"What is it?"
Orochimaru appeared in a white lab coat.
"Amegakure has developed a generator that can convert hydropower into electricity."
Natsuki briefly explained the benefits of hydroelectric power.
"That sounds promising."
Orochimaru nodded slightly and asked, "What do you plan to do?"
Hydroelectric power had many benefits, but in his view, two stood out the most.
First, it was cheap.
Konoha was called a village, but it was actually larger than many cities, so its electricity consumption was naturally high.
Using hydroelectric power could cut a great deal of expense.
Second, it could be produced in large quantities.
Electricity was already commonplace in many parts of the Ninja World.
For example, the Five Great Nations and the Five Great Villages.
If hydroelectric power could truly produce that much electricity, it could be sold elsewhere.
"My plan is to cooperate with Amegakure and first build two