After the three had finished lunch and cleaned everything up, Mizuki finally stopped Sakura Haruno and asked, "You've finished reading the materials I gave you, right?"
"I've finished them, Mizuki-sensei." The lessons were finally about to begin in earnest, and Sakura was filled with anticipation.
"Um..." Ino Yamanaka asked tentatively, "Should I step out for this?" Casually prying into another ninja's secrets was hardly a good thing.
Mizuki glanced at Ino and casually replied, "No need. You wouldn't understand it anyway."
That single remark left Ino speechless. Earlier, she had secretly peeked at what Sakura had been studying, but it was all incomprehensible gibberish, like heavenly script covered in strange symbols. She had no idea what any of it meant.
"I've read it all, but I couldn't understand most of it," Sakura answered.
"It's fine if you don't understand it yet. I'll teach you slowly from here on." Mizuki paused, then asked, "First, I want to ask you this: what do you think chakra is?"
"Chakra?" Sakura found the question strange. Wasn't this basic material from the Ninja Academy? Why was he asking about it? Still, she answered properly, "It is an energy produced by extracting and perfectly combining physical and spiritual energy after the human body has mastered both. It is the foundation for using ninjutsu, genjutsu, and taijutsu."
Mizuki nodded after hearing that. "Everything you said is correct. You remember what you learned at the Ninja Academy very clearly, but that standard answer doesn't really explain the essence of the matter."
"How could it not? Is it wrong?"
"What you said isn't wrong, but you only told me where chakra comes from and what ordinary ninja use it for. You didn't explain the more important part. It's like sunlight outside. We all know it comes from the sun,