As Shinji predicted, Sasuke's First Hokage cell transplant surgery was ultimately a complete success.
Glancing at Sasuke lying exhausted on the operating table, Shinji summoned Neji and asked him to send Sasuke back to his room to rest.
After Neji and Sasuke left the laboratory, Shinji's gaze fell on the petri dish storing the 'Cursed Seal', and a plan grew wildly in his mind.
The problem he faced now was insufficient combat power.
Because facing a powerful enemy at the level of a Hegemon, only crossing the threshold of 'Six Paths Level' could count as combat power.
And among his subordinates, only Toneri Otsutsuki, coordinated with the Giant Tenseigan, reached 'Six Paths Level'.
As for others, even Shion who obtained complete priestess power was a notch inferior.
Further down, like Karin, Mumei, and Sasuke, their theoretical upper limit was at most Super Kage-level.
Because there were no more 'Ten-Tails' for them to break through 'Six Paths Level'.
Even if they perfectly copied the path Shinji walked before, all opening the Rinnegan, and accepting the chakra impact launched by Mumei using 'Yachihoko', upgrading the Rinnegan to 'Six Tomoe Rinnegan' regardless of cost, they could only reach the realm Shinji was at before becoming the Ten-Tails Jinchuriki.
And Shinji at that time couldn't reach 'Six Paths Level' at all.
Breaking through from bottom to top was really too difficult. Shinji succeeded because he sealed the Ten-Tails. Toneri Otsutsuki succeeded because of the Giant Tenseigan. But whether the Ten-Tails or the Giant Tenseigan, these were treasures of the Ninja World, impossible to copy simply.
The 'Cursed Seal' or 'Karma' suddenly gave Shinji new inspiration. Since breaking through from bottom to top was extremely difficult, why not bestow from top to bottom?
Just like in the Fourth Great Ninja War of the original timeline, the 'Sage of Six Paths' appeared at a critical moment, bestowing 'Yang Power' to Naruto and 'Yin Power' to Sasuke respectively, allowing them to briefly cross levels and touch 'Six Paths Level'.
"Even the 'Sage of Six Paths' who only has a spirit body left can do it. Why can't I, possessing the Ten-Tails, do it?"
The more Shinji thought about it, the more reasonable it seemed.
His current strength might not be as good as the 'Sage of Six Paths' in peak state, but definitely stronger than the 'Sage of Six Paths' who split the Ten-Tails and shared chakra with Ninshu.
So as long as he could develop a 'Karma' unique to him and implant it into Karin, Mumei, and Sasuke, Karin and the others could briefly obtain his 'Six Paths Level' powerful strength with the help of the 'Karma' on their bodies.
Shinji rubbed his chin, thinking: "If Karin, Mumei, and Sasuke can successfully possess 'Six Tomoe Rinnegan', then they themselves are actually not far from 'Six Paths Level'. Plus the power of 'Karma', maybe they can cross that threshold and briefly enter 'Six Paths Level'!"
Shinji actually didn't need so many standing 'Six Paths Level' combat powers. After all, he wasn't going to invade other worlds, so he only needed enough 'Six Paths Level' combat power to resist strong enemies when foreign enemies invaded.
Therefore, temporary 'Six Paths Level' combat power utilizing 'Karma' power was also acceptable to him.
"Once 'Karma' development is successful, Karin, Mumei, and Sasuke, the three of them, will definitely be stable!" Pausing, Shinji thought again: "Haku, Yakumo, Neji, Kimimaro, Ryūzetsu, and Chino might also be able to break through the upper limit!"
Having made up his mind, Shinji began to devote himself to the development of 'Karma'.
The essence of 'Karma' was actually a means of high-end editing and storage of chakra. As long as strength reached 'Six Paths Level', almost everyone possessed this ability. It was just that Shinji entered 'Six Paths Level' for a short time, so his editing of chakra wasn't proficient enough.
Actually, many jutsu in the Ninja World also utilized this principle.
For example, the 'Cursed Seal' developed by Orochimaru, the 'Strength of a Hundred Seal' developed by Tsunade, or various 'Sealing Jutsu' requiring ink formulas.
After studying the 'Cursed Seal' specimen in the petri dish, Shinji pondered for a while, then left the Flying Fortress and came to Konoha Village.
Because he had served as the village's supreme commander for a while before, he easily avoided the layers of sentries in the village without alerting anyone, infiltrated the archives, and found the secret scroll of 'Strength of a Hundred Seal' from inside.
After flipping through it carefully, he murmured: "Sure enough!"
The Ninja World never lacked geniuses. Just limited by insufficient chakra level, ordinary ninjas couldn't develop 'Karma' that could perfectly backup their own chakra information like the Otsutsuki clan.
But ninjas never stopped utilizing and exploring chakra.
Just like the 'Strength of a Hundred Seal' in Shinji's hand at this moment. It was a secret jutsu storing chakra in a certain part of the body in the form of a mark.
And this mark of 'Strength of a Hundred Seal' was actually a simplified 'Karma'.
Different from the Otsutsuki clan's 'Karma', the mark of 'Strength of a Hundred Seal' only stored chakra, while 'Karma' not only stored chakra but also stored all information of the 'Karma' owner using chakra as a carrier.
In other words, 'Karma' was a backup of the 'Karma' owner.
As long as 'Karma' still existed, the owner of 'Karma' would not die. Orochimaru's 'Cursed Seal' achieved this point.
"Eh, then 'Sage Mode' also seems to have traces of 'Karma'..."
Shinji suddenly thought of the eyeshadow or other marks more or less present on ninjas' faces when activating 'Sage Mode'.
These marks, just like the many ink-colored patterns appearing on the body of a 'vessel' implanted with 'Karma' when activating 'Karma', were all concrete manifestations of foreign chakra attaching to the body.
"If that's the case, if I can also edit natural energy into 'Karma', then everyone accepting my 'Karma' can also obtain natural energy after activating 'Karma', entering the most perfect 'Sage Mode'."
Thinking of this, Shinji's spirit was instantly lifted.
Because the power of 'Karma' was his own power, if he could really manage to edit Senjutsu Chakra into his 'Karma', then his subordinates could obtain Senjutsu Chakra without learning costs by activating 'Karma'.
Soon, he gathered his thoughts.
Currently, he knew nothing about 'Sage Arts', and hadn't mastered the technology of 'Karma'. Saying editing Senjutsu Chakra into 'Karma' was still just an immature imagination.
However, with this line of thought, things changed from the one-way effort of Karin, Mumei, and Sasuke to a two-way effort from top and bottom together. Karin and the others could strive to become stronger at their own pace, and Shinji could also develop 'Karma' at his own pace. No matter which side made progress, it could greatly improve the overall combat power...