Constructing the Formula, Permanent State

It was just that this plan had been shelved all along.

It was not for lack of ideas, but because the necessary conditions had made it impossible to carry out.

It was not as though he had never tried designing related formulas.

The greatest obstacle lay in the level at which it needed to function.

Unlike Attribute Seals, which could be inscribed on the skin's surface and affect the body's exterior, a formula meant to enhance neural reflexes had to act directly upon the neural network itself.

If it were merely inscribed onto the body's surface, those rune nodes would be highly susceptible to impacts or chakra interference during intense combat.

Once the formula's structural balance was damaged, it might fail at best. At worst, it could cause chakra disruption within the body, even inflicting unpredictable damage upon the sensitive nervous system.

With Minamoto Takuya's current physique, he could recover from any injury. But if something like that happened, he would inevitably be in the middle of battle, and there would be no time for him to recover.

Thus, in Minamoto Takuya's view, doing so would not be reinforcement at all. Instead, it would create a fatal weakness for himself, making it entirely meaningless.

But now, things were different.

A completely new solution gradually became clear in his mind.

Perhaps... he had finally found a way to safely inscribe the Nerve Reflex Enhancement Formula and make it nearly immune to external interference in battle.

The key to Minamoto Takuya increasing his neural reflex speed did not lie in the Tenseigan, but in utilizing the unique properties of the Shikotsumyaku Kekkei Genkai.

The abilities granted to its user by the Shikotsumyaku went far beyond simply manipulating bones for offense and defense.

Its core lay in the absolute control over the body's