One thing had to be acknowledged: Kabuto was more talented than Kakashi. When it came to understanding ninjutsu, Kakashi relied more on applying his predecessors' experience before summarizing it to find his own path.
Kabuto, on the other hand, constantly refined what he learned, making it better suited to himself.
Coupled with his sharp mind and calm, rational nature, at least he would not do anything foolish.
"The village's Medical Ninjutsu originated with Tsunade. She is the cornerstone of medical ninja. If there is a chance, I will take you to visit her."
Muzan told him about the development of Konoha's medical ninja as well. However, once Muzan finished speaking, Kabuto voiced an objection.
"I am sorry, Lord Muzan, but in my impression, you are the best medical ninja in the village. I believe the future of medical ninja will depend on you!"
It was not that Kabuto was deliberately flattering Muzan. Tsunade had not returned to the village in a long time, to the point that many of the younger generation did not even know her name. Even the Legendary Sannin were rarely mentioned.
"You are not wrong. Let us begin training."
The laboratory was spacious. Medical Ninjutsu lacked large-scale offensive power, so it would not interfere with Muzan's experiments.
Orochimaru had conducted basic research on Man-Eating Demons. Although he had not solved their weaknesses, some of his findings could still be used as reference.
Combined with Muzan's understanding of sunlight and the series of changes brought by Sage transformation, a vague path gradually became clear.
He slowly absorbed the natural energy in the air until changes appeared in his body. At that moment, Muzan cut open his palm, letting several drops of cherry-red blood fall into a petri dish.
"If I maintain Sage Mode continuously, can my body