Bending down, Minato Namikaze examined the marks left by the Rasengan, his face filled with amazement.
The last time he and Gong Yi had gone on a mission, the battlefield had been too spread out. Aside from him, no one else had seen Gong Yi use the Rasengan.
When Gong Yi had used it, Minato had noticed something special about the technique.
The Rasengan had a hint of the Tailed Beast Bomb about it!
The Tailed Beast Bomb was a Tailed Beast's ultimate Ninjutsu. Its power was immense, enough to easily level several mountains or an entire village!
It was astonishing that Gong Yi had created a Ninjutsu of this caliber.
That was why, when privately teaching Kakashi, Minato had thought that although Kakashi's self-developed Chidori was also powerful, Gong Yi had even greater talent than Kakashi.
At this stage, Kakashi's Chidori had yet to reach S-rank. And because Kakashi wasn't yet proficient at using it, its power was far less than the Rasengan's.
Minato Namikaze had a simple reason for wanting to learn the Rasengan!
His beloved, Kushina Uzumaki, was a Jinchuriki!
The Nine-Tails was sealed inside her!
Although members of the Uzumaki Clan could seal Tailed Beasts perfectly thanks to their unique constitution and vast Chakra reserves,
there was no guarantee that something wouldn't go wrong. If the Nine-Tails broke through its seal, Minato didn't want to see Kushina put in danger.
"To suppress a Tailed Beast, I have to understand it! The Rasengan works on the same principle as the Tailed Beast Bomb. I have to master it so I'll be prepared!"
"Fortunately, Gong Yi was generous and readily taught me this Ninjutsu."
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"Hmm, if I get the chance, I'll repay him too."
Gong Yi didn't really know what Minato was thinking, though he suspected it