"Genjutsu? Or a secret technique? Who are you? What do you want from me?" Tsunade asked.
"I'm not anyone, I'm not human. I'm the Strongest Healer System, and my purpose is to cultivate you into the strongest healer," the system replied.
"I don't need it. You can leave." Tsunade said.
"Once bound, the system cannot be unbound. Forced unbinding will cause the host to lose all chakra and prevent chakra regeneration. The host has one chance to reconsider. Do you wish to force unbind?" the system asked.
"Force unbind? Ridiculous. I, Tsunade, am a near-Kage-level powerhouse. How could you take away my chakra?"
Tsunade scoffed.
Not to mention Tsunade's near-Kage-level strength, there was also a prime Hiruzen Sarutobi present.
This Hiruzen was not the indecisive elder known as the Professor later on. The current Hiruzen was called a Ninja Hero, a top-tier powerhouse among the Kage.
With such a lineup, Tsunade didn't believe that the so-called Strongest Healer System in her mind could take away her chakra.
But Tsunade's confidence lasted less than two seconds before she panicked.
Because in those two seconds, all the chakra in Tsunade's body vanished completely, leaving not a trace.
The stubborn Tsunade tried to regenerate her chakra, but unfortunately, not a single bit could be extracted!
No matter what she did, it was impossible!
Her physical and spiritual energy couldn't merge, like water and fire, making it impossible to extract chakra.
As a medical ninja, Tsunade was absolutely confident in her medical ninjutsu.
And for a medical ninja, the proudest thing is chakra control.
Only those with excellent chakra control have the potential to become a qualified medical ninja.
As one of the best medical ninjas, Tsunade's chakra control was even more unparalleled, crushing most others.
Otherwise, she wouldn't have developed the Strength Punch technique, which requires precise chakra control.
But now, none of that mattered, because Tsunade had completely lost her chakra.
"System, I take it back."
Tsunade instantly surrendered.
The stronger one is, the more apparent the loss of such power feels.
Tsunade couldn't bear the thought of losing all her power.
In an instant, Tsunade felt her chakra return to her body.
Hiruzen Sarutobi, standing before her, was even more sensitive. The moment Tsunade lost her chakra, he could sense her transform from a powerful Kage-level ninja to an ordinary person.
Hiruzen even blinked, as if doubting his own perception!
As a powerful Kage-level ninja, Hiruzen's sensory abilities, though not as keen as those of a specialized sensor ninja, were still sufficient to gauge strength.
"Tsunade, you…"
However, before he could finish, Hiruzen sensed Tsunade's power seemingly return.
Was it an illusion? Had he been too busy lately and imagined it?
Hiruzen questioned himself.
"Old man, what's wrong?" Tsunade feigned confusion, though she knew what her teacher had been about to ask.
"Nothing, maybe I'm just too tired lately. I must be hallucinating," Hiruzen smiled warmly and said.
Tsunade chuckled but said nothing more.
Her mind was now entirely consumed by the system. The recent events had made her realize this system wasn't as simple as she'd thought.
"System, who created you?" Tsunade asked.
"The system cannot answer that. The host only needs to know that with the system's help, you will become the strongest healer."
"What's a healer? Why do I need to become the strongest one? Shouldn't I be the strongest ninja instead?"
Though unsure what a healer meant, Tsunade instinctively felt something was off.
"And why does becoming the strongest healer require marrying someone named Uchiha Yin? Come on, I'm at least seven years older than him!"
"And he's from the Uchiha clan! Don't you know the Uchiha and Senju clans are practically sworn enemies?"
Tsunade calmed down and asked in confusion.
"Ding, the host has too many questions. The system will only answer partially."
"Healer refers to a medical ninja. And I'm sure Uchiha Yin won't mind you becoming his wife."
The system said solemnly, then fell silent.
"That's it? Just that?"
"Yes, isn't that detailed enough?"
"He might not mind, but I do! Don't you think about my feelings at all? Whose system are you, anyway?"
Tsunade couldn't stay calm, her inner voice roaring.