Successfully awakening the Rinnegan marked another significant leap in Minamoto Takuya's mastery of Yin-Yang and the five elemental transformations.
At this point, although he had yet to obtain a complete Six Paths Body by becoming the Ten-Tails Jinchuriki, the surging power within him had already laid the foundational groundwork for researching a higher-level power: Kekkei Mōra.
However, Minamoto Takuya's thoughts did not turn directly toward Kekkei Mōra.
After careful consideration, he chose a seemingly lower-tier but more fundamental and crucial goal as his breakthrough point: Truth-Seeking Orbs.
Compared to the complex fusion of Kekkei Mōra, mastering the principles behind creating Truth-Seeking Orbs was a more practical and gradual path.
Researching Kekkei Mōra would be more prudent after he became the Ten-Tails Jinchuriki.
The essence of a Truth-Seeking Orb was a high-density chakra crystal formed by using Yin-Yang Release to shape its framework and incorporating all seven chakra natures, including Yin and Yang.
Under normal circumstances, when a shinobi became the Ten-Tails Jinchuriki or fully learned the Sage Art inherited from the Sage of Six Paths, nine Truth-Seeking Orbs would automatically manifest around them.
Yet this seemingly powerful gift concealed its own limitations.
This automatic process merely proved that the user possessed the basic prerequisites to create Truth-Seeking Orbs. It did not mean they truly understood or mastered the core techniques and principles behind their creation.
Thus, once these automatically generated Truth-Seeking Orbs were expended or destroyed in battle, their owners were often helpless to condense new ones through their own power.
This predicament of being "single-use" was no accident.
Whether it was a Ten-Tails Jinchuriki relying on the power of the Tailed Beasts' origins, or someone like Naruto Uzumaki, whose Six Paths Sage Art was actually a temporary external gift bestowed by the Sage of Six Paths, none of them