Merlin saw Rosen's eyes turn into Rinnegan and felt the change in Rosen's aura, so she became cautious.
However, she still attacked Rosen with domineering and brutal swordsmanship.
Shinra Tensei! Rosen instantly activated the Rinnegan's ability.
Just as Merlin was about to collide with the repulsive force, she suddenly pushed off the ground and retreated sharply.
Shinra Tensei directly destroyed the buildings on both sides.
After retreating twenty meters, Merlin's eyes turned pure gold, and she suddenly stopped, then charged forward fiercely.
This was also her ability, Flaw Insight.
She could see anyone's flaws.
And after Rosen released Shinra Tensei, she saw Rosen's flaw.
But at this moment, Rosen released another Shinra Tensei.
A normal Rinnegan has a five-second interval when releasing Shinra Tensei.
But Rosen possessed three pairs of Rinnegan.
The moment Merlin charged forward, she immediately collided with the repulsive force of Shinra Tensei. Merlin immediately blocked with her longsword, enduring the repulsive force of Shinra Tensei.
The longsword formed a shield, blocking the repulsive force.
The moment the repulsive force disappeared, Merlin attacked Rosen again.
Rosen's eyes turned azure, and the whites of his eyes turned pure black, switching to Pure Eyes!
Merlin swung her sword, and Rosen leaned back slightly, avoiding Merlin's strike, while simultaneously thrusting his sword directly at Merlin.
Merlin's golden pupils also discovered the flaw in Rosen's sword Move, avoiding the thrust, and then returned with another sword strike.
Rosen saw all of Merlin's attack trajectories within ten seconds, while Merlin's golden pupils could see the flaws in Rosen's sword Moves.
Both of them were like the most skilled swordsmen, performing the most basic slashes, hacks, and thrusts, yet constantly exchanging Moves. You saw through my sword Move, and I predicted your Roux.
Moreover, both of their speeds were pushed to the extreme, so much so that to onlookers, they seemed to conjure countless Clones in an instant.
Both sides felt that they could not defeat each other with close-combat swordsmanship alone.
They each retreated several meters, their gazes meeting, Pure Eyes and golden pupils observing each other.
Since becoming Sorcerer Supreme, Merlin had rarely encountered an opponent who could match her, and Rosen was undoubtedly such an opponent.
Rosen was only using the basic ability of Pure Eyes, seeing the future.
He had not yet used his Time Stop Domain, and he also felt that Merlin still had trump cards she hadn't used.
Suddenly, the ground shook violently. The tremor was so strong that the entire London was plunged into panic.
This single tremor caused hundreds of buildings in London to collapse.
Merlin looked at Rosen with a questioning gaze, thinking he was responsible.
But she saw that Rosen was also looking at her with an inquiring gaze.
At this moment, Rosen and Merlin simultaneously looked towards the sky.
A massive swirling cloud appeared above London City.
The vortex was not so much a dark cloud as a giant vortex formed by dark energy.
Immediately after, thirteen black beams of light shot up from around London City, like thirteen black pillars reaching the sky.
Merlin's face showed shock and anger when she saw the thirteen black pillars.
And as the thirteen black light pillars ascended, Dormammu and Umar also began to ascend.
"Kill to your heart's content, let everyone go mad, haha..." Dormammu laughed wildly, flying higher and higher.
Large amounts of black rain suddenly fell from the black vortex in the sky.
Rosen felt an ominous aura in the black rain, and he immediately donned his black Susanoo armor.
But the civilians of London City suffered terribly; after being touched by the black rain, they began to mutate.
This black rain was the purest dark energy; any Mortal who came into contact with dark energy would be twisted and mutated.
And these civilians, tainted by the black rain, also began to kill each other.
They all devolved into irrational Beasts, roaring and slaughtering.
Within the Dark Society, Black Magicians also tried to absorb the black rain.
But what awaited them was not an increase in magic power, but being twisted by the black rain into even more terrifying dark beings.
Dormammu and Umar looked up at the black vortex in the sky. The vortex grew larger as the killing in London City increased.
On the other side of the black vortex was a Universe called the Dark Dimension!
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