Chapter 3:
He knew that in the world of Naruto, a ninja's power came from chakra an energy formed by the perfect fusion of life energy and spiritual energy.
Let's set spiritual energy aside for now. First, let's talk about life energy!
Life energy generally referred to a person's physical constitution. The stronger a person's body, the more chakra they could generate, and the faster they could recover after using techniques both of which were massive advantages in combat.
Take, for example, the Senju and Uzumaki clans in this world! Due to their naturally robust bodies, even children from these clans had more chakra than the average ninja. This meant they could spam powerful techniques in battle without worrying about running out of chakra. How could an ordinary ninja ever compete with that?
So, after seeing the instructions for using the Basic Gene Enhancement Serum, Orochimaru quickly understood its function, and he found himself growing a bit more interested in the system.
In this world, for ordinary ninjas, there were very few ways to drastically increase their chakra reserves. Aside from becoming a Jinchuuriki, the only viable option was to transplant cells from the First Hokage, Hashirama Senju. But this system could accomplish something similar enhancing a ninja's chakra reserves with just a vial of the Basic Genetic Enhancement Serum. That was nothing short of miraculous.
After a brief period of reflection, Orochimaru had more or less figured it out.
"So, I get it now. Besides the free newbie gift pack, I'll have to research future technological products on my own, right?" Orochimaru asked, already familiar with the standard process of systems from the countless novels he'd read.
["Yes, host!"] the system replied dutifully.