There were many ways to reduce impurities.
Improving compatibility with one's own soul, or helping the other party fulfill their final wish, could both lessen their resentment.
It simply could not be completely eliminated. Therefore, after reincarnation, the soul would inevitably enter a period of weakness and would need time to adapt to its new body—at least several years of transition.
"My guess is that we can cultivate a pure body, one without memories or emotions."
Something like a clone—simply create one, then perform the replacement, using this method to reduce the impurities.
Muzan merely voiced his speculation. As for whether it would succeed, he could not guarantee it. But noticing Orochimaru's hesitant expression, it seemed the other man wanted to try this method as well.
"It is indeed a very good method, but it cannot be done at the current stage."
His body had not suffered severe damage, nor had it aged to the point where it could no longer be used.
Now that he had a goal, Orochimaru would begin his experiments.
Both of them had clear plans. Muzan used the materials here to conduct human experiments, while Orochimaru studied the forbidden technique, Living Corpse Reincarnation.
Muzan's life returned to tranquility. He traveled between Root and Orochimaru's laboratory, and even the people of Konoha no longer saw him.
They all assumed he had gone on a secret mission.
"What happened in the village?"
Muzan had just emerged from the Forest of Death when he saw numerous Konoha Ninja returning to the village. After several months of recuperation, Konoha had yet to recover.
Most Konoha Ninja normally went out on missions. Even a powerhouse like Hatake Sakumo led teams and remained active among the major villages.
"Something's not right."
Without wasting time, Muzan decided to return to the village