Benign Ancestral Regression

Orochimaru's Laboratory.

"Lord Natsuki."

Kimimaro struggled to sit up, but Natsuki pressed him back down.

"Just lie there and rest. It's not like I'm going anywhere."

The moment Kimimaro saw Natsuki, his entire body relaxed.

"Lord Natsuki, you're back."

Haku carried over some food and placed it before Kimimaro.

She was also delighted to see Natsuki return.

Kimimaro had been lying there for so long without getting up not because his condition had worsened again.

It was because his body was undergoing Benign Ancestral Regression.

Acquired ancestral regression was exceedingly rare. After all, Kimimaro was already eighteen years old.

Logically, this should not have been possible.

But Orochimaru said that compared to other Kekkei Genkai, Kimimaro's Shikotsumyaku was extremely unstable.

An unstable bloodline had two possible paths of development. One was malignant degeneration, a Bloodline Disease.

The other was Benign Ancestral Regression.

Previously, Kimimaro's internal organs had been unable to bear his increasingly corrosive blood.

But after Natsuki used his Healing Blood to neutralize it, although Kimimaro's blood was still highly poisonous, his body was constantly healing itself.

Kimimaro's body was continuously being damaged, then repaired.

Under those circumstances, Kimimaro's body began undergoing a marvelous reaction.

Then, Natsuki's Feigned Death dealt Kimimaro a mental shock.

Kimimaro's eyes had mutated first, and after that mutation, his body began reacting as well.

And now, Kimimaro was covered in monitoring equipment.

It was all to observe when his bloodline would stabilize.

Natsuki stroked Kimimaro's head. Looking at his pair of Byakugan, he saw that Kimimaro's temperament had become far colder than before.

He was becoming more and more like the Otsutsuki Clan.

Kimimaro's condition was actually fine. He only had a slight fever.

But there was too much monitoring equipment attached to him.

That was why Haku had brought the meal inside.

"You