Earlier, the two Root Organization ninja under surveillance had confessed.
Danzo and Orochimaru were researching "eternal life."
They hoped to attain immortality.
When Tsunade heard that Karmic Fire was also researching "eternal life," she was immediately puzzled:
"Yomi Eternal Life Technique?"
Uchiha Gōka patiently explained:
"The ninjutsu I'm researching is called the Yomi Technique."
"The Yomi Technique is divided into two types."
"The first is the Yomi Rebirth Technique. In other words, the ninjutsu used to revive Nawaki—the Resurrection Technique."
"The second is the Yomi Eternal Life Technique."
"The Yomi Eternal Life Technique can prevent me from aging and let me remain forever around eighteen years old."
By then, Tsunade was already Uchiha Gōka's wife.
Therefore, there was no need to keep anything from her.
Tsunade, renowned as a master of medical ninjutsu, possessed profound expertise in the field.
After hearing Karmic Fire's words, Tsunade's face was full of disbelief:
"How could a person possibly not age?"
The Yomi Eternal Life Technique had completely surpassed Tsunade's understanding.
Uchiha Gōka had a certain degree of confidence in developing the "Yomi Eternal Life Technique."
Because Uchiha Gōka possessed a godlike physique and astonishing talent for comprehension.
By combining the immortal techniques that had appeared in the ninja world and in the anime of his previous life, then deducing from them,
it was not impossible to develop the "Yomi Eternal Life Technique."
It was only that the development of the "Yomi Eternal Life Technique" would take an extremely long time.
Even Uchiha Gōka did not know how long it would take him to develop the "Yomi Eternal Life Technique."
Looking at Tsunade, whose delicate brows were slightly furrowed in confusion,
Uchiha Gōka patiently explained:
"In the ninja world, there are currently four known techniques of immortality."
"First, Hidan's Jashin Secret Technique."
"Second, Kakuzu's