Today there's an extra update...

"There's a secret technique like that?" Shisui asked in surprise when he heard it.

This technique was still incredibly wondrous. In Naruto, it had only been invented after several decades, though of course, the factor of mindset was probably an important reason it had taken so long to appear.

Because Shiro's version had only succeeded by combining the two systems of sealing techniques and magecraft. Of course, the sealing-technique portion had, as usual, been completed by Kushina and the others.

Because of that, there were actually two versions. One was Shiro's jewel magecraft, which could store both ninjutsu and magecraft, and the other was a sealing technique that could seal ninjutsu.

But for now, the only one they intended to make public was Shiro's magecraft. In any case, he had plenty of secret techniques, so it was perfectly normal for him to have something like this. As for that sealing technique, they planned to keep it in reserve. Once Minato took power in the future, it would serve as a tremendous achievement for him!

Or it could become his capital for competing for the position of Hokage, clearing away obstacles.

This thing was not as useless as Naruto had said, with all that talk about wearing down one's will. If I don't store offensive ninjutsu and only store medical ninjutsu, wouldn't that solve it?

As long as the cost-performance ratio was high enough, no one would be stupid enough to seal offensive ninjutsu—except for filthy rich people.

A simple comparison: with a genin, did you expect him to use this thing to kill a chunin? That was basically impossible. Their combat experience was not even on the same level.

If he ran into a slightly capable chunin, the moment he raised his hand, the other party would know what he