Naruto: They Have Systems

Honestly, Mikoto, why did you start thinking about being with Yin again?

It's all the system's fault. It kept telling me to become Yin's girlfriend until it brainwashed me.

System... The system says it refuses to take the blame.

"Ding! Congratulations, Master, you've obtained Lightning Release Chakra! Ding! Since you already possess Lightning Release Chakra, the reward has been changed to Chidori-derived ninjutsu."

Watching Uchiha Mikoto flee in embarrassment, Uchiha Yin felt his heart stir.

Just as he was about to remind Uchiha Mikoto not to go back on their bet, the system's voice sounded in his mind.

The Chidori-derived ninjutsu appeared in Uchiha Yin's mind out of nowhere, yet nothing about it felt strange or unfamiliar. It was as though those memories had always been there.

Chidori was a ninjutsu Kakashi had created in the original story, combining Chakra Nature Transformation and Shape Transformation.

It gathered Lightning Release Chakra in the palm to produce a powerful current. The hand became like a sharp blade, capable of piercing through almost anything.

It was named for the sound it made, like the cries of a thousand birds. Its drawback was that attacking required moving at high speed, making the user vulnerable to counterattacks from opponents he could not see clearly. The Sharingan was needed to bring out its full potential.

And besides Chidori itself, there were its derivative ninjutsu.

Uchiha Yin learned Lightning Blade, Chidori Stream, Chidori Senbon, Chidori Sharp Spear, and Chidori Blade in an instant as well.

But he still had a hard time using them.

Chidori demanded an extremely high level of Chakra Nature Transformation, and the amount of Chakra it required was staggering. At Uchiha Yin's current level, he couldn't manage it yet.

Uchiha Yin was still too young, and his Chakra reserves were a limiting factor.