The [Rinnegan] and [Eternal Mangekyō Sharingan] did not belong to the same system!
Simply put.
The [Rinnegan] and [Eternal Mangekyō Sharingan] were two separate systems.
Once Uchiha Minamoto upgraded to the [Rinnegan].
While in his [Rinnegan] state, he would be unable to use the exclusive dōjutsu abilities of the [Eternal Mangekyō Sharingan], namely [Amenotokotachi] and [Kamumusuhi].
However, the other dōjutsu of the [Rinnegan], such as [Shinra Tensei], [Banshō Ten'in], and abilities like the Six Paths of the Rinnegan, would remain usable.
But if Uchiha Minamoto still wanted to use [Amenotokotachi], he would have to leave his [Rinnegan] state, transform again, and activate his [Eternal Mangekyō Sharingan].
Uchiha Minamoto thought back.
It seemed Madara Uchiha did it that way too...
During the Fourth Shinobi World War.
Madara Uchiha had first used his [Eternal Mangekyō Sharingan] against the Allied Shinobi Forces.
Only after activating his [Rinnegan] had he used its various dōjutsu.
For Madara Uchiha, the [Eternal Mangekyō Sharingan] and [Rinnegan] had not belonged to the same system!
As for the three hundred million points mentioned earlier...
It wasn't upgrading the [Eternal Mangekyō Sharingan] to the [Rinnegan], but to the [Rinne Three-Tomoe Sharingan]?!
Uchiha Minamoto thought back again.
There were also examples of the [Rinne Sharingan] in the shinobi world.
Kaguya Otsutsuki, the Ten-Tails, Sasuke Uchiha...
And members of the Ōtsutsuki Clan from other planets.
Setting aside the other examples, there was Sasuke Uchiha, whose situation was closer to Uchiha Minamoto's.
Sasuke Uchiha's [Six-Tomoe Rinne Sharingan] had been a gift from the Sage of Six Paths, and he had only one.
Just like Nagato, who had been "gifted" the [Rinnegan] by Madara Uchiha back then.
After obtaining the [Six-Tomoe Rinne Sharingan], Sasuke Uchiha could likewise only keep it activated, not deactivate it.
In the early stages after obtaining the [Rinne Sharingan], Sasuke