Transplanting a brain into a clone, thereby achieving disguised immortality.
It was proposed by Kamui.
Orochimaru drew inspiration from it.
A long time ago.
Orochimaru had already begun researching Cloning Technology.
Uchiha Shin was his most important test subject.
With Shin, who was compatible with every Kekkei Genkai, assisting him.
Cloning Technology achieved great success and made substantial progress.
However, Cloning Technology was merely Orochimaru's final trump card.
For example, if he had no reincarnation vessel.
Orochimaru would choose to use Living Corpse Reincarnation and occupy his own clone, achieving the most conservative goal of replacing his body.
After Kamui's extensive modifications.
This technique was no longer limited to Orochimaru's original concept.
Instead, it became the ultimate technique for benefiting others.
Although it would raise a series of ethical issues.
They only needed to reduce the scope.
As long as the fewest possible people knew about it and it was tested on the fewest possible subjects.
Before carrying out this plan.
Tobirama Senju, Orochimaru, and Kamui.
Had already conducted experiments on many test subjects.
Medical progress could not be separated from clinical research.
There was no way around it.
Of course.
All evil could be concealed beneath the banner of righteousness.
When Tobirama Senju conducted human experiments, he was the Second Hokage, so it was righteous and glorious.
When Orochimaru conducted human experiments, he was an evil rogue ninja.
Fabricating names and emphasizing one's stance were traditional human skills.
Before Kamui returned.
Tobirama Senju and Orochimaru were making preparations.
For someone like Orochimaru, who understood the ways of the world and could observe everything objectively.
Tobirama Senju's purpose... was probably not limited to this.
"Hoho... Second Hokage. You decided to restore Teacher Sarutobi's youth not only to increase Konoha's combat strength, but also for other reasons, right..."
Orochimaru fiddled with