[Phase One Main Quest: Prevent the Uchiha Massacre Night. Complete.] [Quest Completion: Perfect.] [Reward Granted: Eternal Mangekyō Sharingan.]
The system's cold notification echoed through Uchiha You's mind.
The next instant,
an unprecedented power erupted from deep within his eyes.
It was not the burning pain he felt when using an ordinary Mangekyo Sharingan.
Nor was it the aching, stabbing sensation that followed excessive use of his ocular power.
It was a cold, immense force, as though something had awakened in the deepest reaches of his blood.
Uchiha You stood amid the ruins and faltered slightly.
His eyes began to change.
The black-and-red Protective Umbrella pattern of his Mangekyo Sharingan slowly revolved deep within his pupils.
Then the inner markings began to rearrange.
A new mark emerged from the center of the Protective Umbrella pattern.
It resembled a uranium nucleus undergoing fission.
Three fission arcs revolved slowly around his pupils.
The outer layer bore the black-and-red markings of the Protective Umbrella pathogen.
The inner layer bore a uranium-235 pattern symbolizing nuclear fission.
The two patterns merged and locked together.
Eternal Mangekyō Sharingan.
Complete!
Boom!
A pressure far beyond his previous ocular power spread outward from Uchiha You.
The flames flickered.
Dust rolled backward.
Every Uchiha clansman nearby felt a jolt in his chest.
Shisui snapped his head up.
Itachi's pupils contracted.
Fugaku's expression changed sharply.
"This is..."
All three had firsthand experience with the Uchiha Clan's Mangekyo Sharingan power.
They could clearly sense that Uchiha You's eyes had changed.
Those eyes no longer felt like an ordinary Mangekyo Sharingan.
They were deeper.
And more dangerous.
It was as if a flame that had been burning itself away had become a black-and-red stellar core that would never go out.
Uchiha Chuan stood a short distance away and could not help