As his ocular power rapidly surged, Uchiha Shisui's Three-Tomoe connected into one, transforming into the shape of a large pinwheel.
"Gah!"
The pain of his ocular power evolving stimulated Uchiha Shisui's nerves, making him involuntarily cover his eyes and cry out in pain.
After a while, Uchiha Shisui slowly raised his head. His aura had risen another level, and he wore an inquisitive expression as his fingers gently brushed over his eyes.
He could feel the qualitative transformation in the ocular power within them.
"So this is the Mangekyo?"
"It truly is an entirely different level of ocular technique from the Three-Tomoe."
Uchiha Shisui gained some understanding. No wonder Uchiha Madara had been able to dominate the Ninja World for so long—an ordinary Mangekyo alone was already absurdly powerful.
"So, what kind of ocular techniques did you awaken?"
Sarutobi Hiruzen asked with a hint of curiosity.
In the original story, both of Uchiha Shisui's eyes possessed Genjutsu, but the Sharingan was known as the eye that reflected the heart. Depending on the awakener's state of mind, it could awaken ocular techniques of different natures.
In the original work, Uchiha Shisui had wanted to change the Uchiha clan's predicament and prevent the Uchiha clan from coming into conflict with Konoha. Thus, he awakened Kotoamatsukami, intending to alter the will of the Uchiha clan's higher-ups.
"One eye's ocular technique is called Kotoamatsukami. It can alter another person's will."
Uchiha Shisui sensed it.
"The other is called Amenominaka."
"It allows me to enter and leave a barren alternate dimension."
"However, it's different from Uchiha Obito's ability. I can't turn intangible—I can only enter the alternate dimension with my entire body."
Sarutobi Hiruzen's expression shifted slightly.
"Amenominaka..."
Sarutobi Hiruzen recalled it. This seemed to be Otsutsuki Kaguya's technique in the original work. However, Otsutsuki