Naruto: Uchiha Survivor Forced to Save the Shinobi World

Because the dojutsu power of this newly fused Eternal Mangekyō Sharingan was so strong, Shinji's chakra gain when driving it through Susanoo Tomoshibi was immense.

Yet the greater the gain—

The more it highlighted an uncomfortable truth:

Shinji's own Eternal Mangekyō Sharingan wasn't perfect.

There was still room for improvement — a gap that could be complemented by another Sharingan.

"So much for thinking my eyes had already reached the pinnacle of the Sharingan..."

Shinji lightly shook his head.

Now it was clear—

The reason why driving regular three-tomoe Sharingan and ordinary Mangekyō Sharingan had yielded only modest benefits before was not because Shinji was perfect, but because the gap between their tiers was simply too large.

Their chakra nature couldn't complement his own.

But—