"Kirin!?"
Sasuke looked baffled, not knowing why Kakashi had suddenly brought up Kirin of Kirigakure.
Kakashi said, "This technique is called 'Kirin'!"
Sasuke frowned, a suspicion forming in his heart. "Could this technique also be related to Kirin of Kirigakure?"
Kakashi nodded lightly. "You guessed right. Just like Purple Electricity, Kirin was also developed by Kirin of Kirigakure!"
During Hyuga Kagami's previous battle with Darui, Kakashi had comprehended more than just Purple Electricity. He had also grasped the technique Hyuga Kagami used at the end: drawing upon the natural lightning within the clouds with Purple Electricity.
Afterward, he made inquiries from various sources before learning from Darui of Kumogakure that the technique was called Kirin!
And while guiding Sasuke's Purple Electricity training, he had not been idle either. He had been constantly exploring the technique Kirin.
As everyone knew, a Storm Release ninja was a walking storm.
Storm Release was the Kekkei Genkai most capable of influencing the weather. As long as a Storm Release ninja wished it, they could use Storm Release to create a storm at any time.
Yet when Hyuga Kagami and Darui had fought, neither Storm Release ninja had wasted their own chakra to directly create a storm with Storm Release. Instead, they had used lower-cost methods such as mountain fires and Lightning Release to subtly alter the weather on the battlefield, eventually harnessing nature's power to create a thunderstorm!
Then, by cleverly exploiting lightning's conductive nature, the two Storm Release ninjas had expended only a certain amount of chakra to wield natural lightning and unleash an attack that had nearly destroyed the heavens and earth.
That battle had greatly shocked the watching Kakashi!
Kakashi's combat wisdom was beyond question, so he quickly realized that if this technique were used properly, even without the Storm Release