Reaching up to touch the glowing "Yin Seal" mark on his forehead, Hyuga Kagami focused and sensed it carefully.
Without a doubt, something had gone wrong with his "Sage Mode."
Everything had been normal at first. The moment he activated "Sage Mode," black markings appeared on his face, just as they had on the First Hokage and Haku.
But then, a sudden change occurred!
The "Yin Seal," which had been empty after his resurrection, began glowing for no apparent reason and swiftly absorbed every black marking that signified a normal "Sage Mode."
It seems my Sage Mode is somewhat different...
Hyuga Kagami frowned slightly.
As a researcher, he instinctively resisted any unexpected development beyond his control. Thus, he was extremely cautious about this mutation, activating his Tenseigan at full power while carefully sensing his body.
After a moment, he gradually reached a conclusion.
For the time being, it seemed that his "Sage Mode" had been affected by the "Yin Seal" and had undergone a certain degree of change.
The external manifestation of this change was that the black markings symbolizing "Sage Mode" had vanished from his face, replaced by the glowing "Yin Seal" mark. Internally, he discovered that he could use the "Yin Seal" to store Senjutsu chakra and influence his "Sage Mode."
In short, by storing Senjutsu chakra in the "Yin Seal" beforehand, he could enter "Sage Mode" anytime, anywhere. At the same time, he could use the Senjutsu chakra stored within the "Yin Seal" to extend the duration of his "Sage Mode."
This doesn't seem like a bad thing...
Hyuga Kagami's lips curled upward, and his heart gradually settled.
He had discovered that the mutation in his "Sage Mode" was also due to his Tenseigan. It was his Tenseigan that had suppressed the Senjutsu chakra throughout the process,