Among the various Kekkei Genkai in the Shinobi World, aside from those related to Yin Release, the best way to activate them was to cultivate the physical body through the Yang God Martial Way.
Even with Chakra assisting them, and even though Sarutobi Toru had already cultivated the Yang God Martial Way once before, it would still take at least half a year for those Bloodline Clone Clones to attain the body of a Martial Saint.
Still, although the wait was a little long, the Chakra Fruits refined by those Clone Clones would definitely be far more effective than those produced by the newly activated Uchiha Clan Clone Clones.
If he had not wanted his harem to test the effects of these Chakra Fruits first, he would certainly have had the Uchiha Clan Clone Clones cultivate the Yang God Martial Way as well. Only then could they achieve the greatest possible results.
However, even if they cultivated the Yang God Martial Way, the Uchiha Clan's Three Tomoe Sharingan could not evolve into a Mangekyo. On the other hand, if they became Ghost Immortals, their eyes could definitely evolve into Eternal Mangekyo.
Therefore, Sarutobi Toru was now also preparing to teach his harem the cultivation method of the Ghost Immortal.
In truth, not many people cultivated the Path of the Ghost Immortal. Aside from Sarutobi Toru himself, only Dan Katō and Orochimaru had served as test subjects.
The main reason was that, in the beginning, the Path of the Ghost Immortal could not increase a ninja's strength. Moreover, both the time required and the danger involved in cultivating it far exceeded those of cultivating the Yang God Martial Way. For ninjas who were not skilled in Yin Release and possessed no Yin Release Secret Techniques, the Path of the Ghost Immortal