During this time, Kabuto Yakushi had paid no heed to whether the experimental subjects were severely damaged, focusing entirely on pushing his research forward.
His research was no longer solely for himself; part of it was also meant to make Madara Uchiha's Sage Body more complete.
After all, following the battle at the Valley of the End, Madara Uchiha had directly transplanted a piece of flesh he had bitten from Hashirama's arm into his own body.
These most primitive Hashirama cells were not only highly concentrated but also extremely dangerous.
Yet Madara Uchiha had actually managed to withstand them.
Even so, the transplant back then had been far too crude, to the point that some of the Hashirama cells' effects had never manifested in Madara Uchiha.
Now, Kabuto Yakushi was trying to figure out how to bring out the effects of the Hashirama cells inside Madara Uchiha and take his strength a step further.
After all... when he honestly asked himself, he had no chance of winning against that monster Ning Feng.
He still needed to rely on Madara Uchiha's strength to keep contending with Ning Feng.
But anyone with eyes could see that the current Madara Uchiha... was far weaker than Ning Feng.
Ning Feng could single-handedly hold off both the reincarnated Hashirama Senju and Madara Uchiha at his peak.
His strength... qualified him as the strongest person below the Six Paths level today.
And he was far ahead of whoever ranked second.
"This White Zetsu is ruined too."
Kabuto Yakushi looked at the White Zetsu in the cultivation vessel, which had shown no movement for a long time, then sighed helplessly and spoke to Madara Uchiha.
"Another one ruined?"
A slightly dangerous glint appeared in Madara Uchiha's eyes.
He could create White Zetsu without limit.
But there was