Nawaki: I Want to Fight Ten at Once!

A week later!

"Worthy of the Second Hokage. In terms of research, I'd call you the strongest!"

Tang Ping rubbed a Black Rod between his fingers.

It was too powerful!

After joining the research, the other man had spent only a few days understanding the negative emotion extraction process before directly proposing improvements.

With a new line of thought and Tang Ping's hands-on ability, it had taken only a little time to produce this Black Rod.

The purity of the new Black Rod had improved tremendously.

In appearance, it resembled black jade. When one's gaze fell upon it, it felt as though it would be drawn inside.

"I merely improved upon your research materials. It's nothing worth mentioning!"

Tobirama Senju rejected Tang Ping's praise.

Facing the Second Hokage, who found even this mediocre, Tang Ping's face twitched with envy.

He had made such a huge improvement in just a few days and still thought it was nothing. It fully demonstrated the gap between a research monster and an ordinary person.

If the Black Rod's appearance alone could not prove anything, the data made it clear just how monstrous Tobirama Senju was.

Its purity had risen from fifty percent to ninety-nine percent. The benefits were that its energy capacity had increased severalfold, while its efficiency had risen by more than ten times.

Take the Blazing Sun, for example. One Black Rod had originally lasted half a year, but now it could last several years, and every aspect of its performance had improved greatly.

It was nothing short of a qualitative leap!

In Tang Ping's view, this gain alone far exceeded the investment of reviving Nawaki, finding him five girls with Chakra talent, and assigning him a manor.

Cough, cough!

Though Nawaki had strongly objected.

Tobirama Senju was not the indulgent sort.