Hyuga Kagami withdrew his gaze from the distance, activated his Byakugan, and examined himself.
His chest felt as though it were on fire, and multiple parts of his respiratory tract had been damaged. Even ordinary breathing tugged painfully at his heart and lungs, which undoubtedly meant that his respiratory system—especially his heart and lungs—had reached their limit.
If he forced himself to continue, it could very likely lead to cardiac arrest or pulmonary necrosis.
Moreover, his limbs were weak and sore. Some of the less robust muscle groups had even suffered obvious tears.
"Damn!"
Looking at the condition of his body reflected in his Byakugan's vision, Hyuga Kagami could not help but click his tongue again, his expression darkening.
He had anticipated from the start that cultivating the Lightning Release Chakra Mode would be difficult, but he had never expected it to be this difficult. Even this Lightning Release Clone, which had mastered Purple Electricity and Storm Release, could not endure it.
It seems that mastering Purple Electricity and Storm Release so smoothly before gave me an inaccurate estimate of this Lightning Release Clone's strength!
Hyuga Kagami quickly began reviewing his own mistakes.
Because he had extensive experience developing Kekkei Genkai and even Kekkei Tōta, he was a true master when it came to chakra nature transformation.
Furthermore, this Lightning Release Clone contained Kakashi's cellular tissue, giving it an exceptionally high affinity for Lightning-nature chakra. That was why he had mastered Purple Electricity and Storm Release so easily.
However, the Lightning Release Chakra Mode was a completely different field from chakra nature transformations like Purple Electricity and Storm Release. Thus, neither Hyuga Kagami's abundant experience with chakra nature transformations nor Kakashi's excellent cellular tissue could help him cultivate the Lightning Release Chakra Mode.
On top of that, Kumogakure's *Lightning Release