Aokawa's fingers tapped the table unconsciously, his brow furrowed.
How exactly did the Main House accurately trigger the cursed seal inside the Branch House members' brains from a distance?
He recalled the original story where Hyuga Hiashi used the Caged Bird Seal as a means to punish Hyuga Hizashi.
The fact that the intensity of the activation could be controlled proved that the hand seals used and the cursed seal in the brain were connected in real-time.
He suddenly thought of his own method of detonating Chakra needles.
But there was a prerequisite: those were his own Chakra, which he could naturally sense.
However, once the "Caged Bird Seal" cursed seal was carved, it became an independent technique.
It was impossible for the Main House to divide a strand of Chakra to connect to every Branch House member's seal; that was too absurd, and the Chakra consumption would be a bottomless pit.
There had to be some more efficient and hidden "signal" mechanism.
Signal... A word flashed through Aokawa's mind.
Genjutsu.
What was the essence of Genjutsu?
Using Yin Release Chakra to interfere with the target's Chakra flow, thereby affecting their five senses and spirit, or even directly acting on the brain's nerves.
As soon as this thought appeared, it was like the clouds parting to see the sun.
Could the activation of "Caged Bird Seal" be a very special type of "signal-based Genjutsu" targeting the brain's nerves?
The Main House would emit a unique Yin Release Chakra vibration through a specific "seal" or command.
Meanwhile, the cursed seal in the Branch House's brain would act like a precise receiver.
Once it received a "signal" of this specific frequency, the cursed seal would activate on its own.
The strength of the signal would determine the intensity of the seal's activation, thus controlling the severity of the punishment.
This hypothesis almost perfectly explained all his doubts.
Aokawa's eyes lit up.
To break the Caged Bird Seal, he first had to understand the nature of this "signal."
Another half a month passed, and Aokawa still had no clues.
The data Orochimaru provided only covered the Caged Bird Seal itself; there was no information at all regarding the activation of the cursed seal.
But that was normal; if the method to activate the Hyuga Clan's cursed seal could be obtained by outsiders, the clan wouldn't be far from extinction.
He rubbed his somewhat groggy head and prepared to go out for some fresh air.
At the same time, he thought about where he could get some high-level Genjutsu information, especially knowledge on how Yin Release Chakra acts on the spiritual level, to see if he could gain insights by analogy.
He stood up and lifted the curtain of the Barracks.
The scene outside made him pause for a moment.
The originally solemn and tense atmosphere of the camp seemed to have thinned out quite a bit.
Many Ninjas were gathered in small groups, especially the young ones who had just graduated from the Ninja Academy, their faces carrying an unusual liveliness and blush.
Men and women, more or less, all had flowers and gifts in their hands.
"Is it... Valentine's Day?" Aokawa wondered, having only walked a few steps.
"Aokawa... Aokawa-kun!" A slightly nervous female voice came from the side.
Aokawa turned and saw a pretty female Ninja with a red face, holding a large pile of things as she ran quickly toward him.
"It's Haruna!" Aokawa responded with a smile.
Since the last time he had greeted her while walking home with Hyuga Ryosuke, he had hardly run into her outside.
"Aokawa-kun, Ha-Happy Valentine's Day!" Haruna said with her head down, her face blushing.
Before Aokawa could respond.
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