[Perfect Realm]. This is a very subtle ability.
The description is long-winded, but to summarize, it allows those with special abilities to improve their control over those abilities and devise more tactics derived from them.
But the current Herrscher of Thunder, after being provoked by Aaron... felt like she had reverted to her old tactics.
After the battle began, when attacking Aaron, aside from the long-range hand-cannon railguns, she simply created lightning to fall chaotically from the sky.
While these two moves had immense destructive power, the problem was that no matter how powerful an attack is, it's meaningless if it doesn't hit.
The Herrscher of Thunder didn't seem to be using the [Perfect Realm] to think up tactics, but she was still making some moves subconsciously.
For example, when she noticed Aaron preparing to close in, she would choose to retreat at full speed to maintain distance—after all, she had been beaten up at close range by Aaron once. Knowing his melee strength, even without actively using the [Perfect Realm], she wasn't so brain-dead as to forget that.
For another example, when calling down lightning, she wouldn't dump it all on one dense location.
If she bombarded a single spot densely, dodging would actually be easier for Aaron.
Only by striking the ground randomly and chaotically could she increase her hit rate by expanding the strike zone.
And this was just the thinking she gained subconsciously from acquiring the [Perfect Realm].
Once this person started actively using the [Perfect Realm], Aaron really didn't dare to imagine what would happen next.
He wasn't great with physics to begin with. God knows what tricks the Herrscher of Thunder, wielding Herrscher Authorities, would pull once she engaged the [Perfect Realm].
The opportunity comes only once. Only by seizing that single chance to defeat the enemy could he avoid the worst possible ending.
However, precisely because the situation was critical, the current Aaron...
...actually felt his heart becoming even more excited than before.
Fighting strong enemies wasn't something an orphan struggling to survive in society should look forward to.
But for some unknown reason, Aaron, walking on the edge of the cliff, truly felt that the excitement in his heart was by no means fake.
Hah, how strange.
The situation is clearly terrible, so... is my brain cramping up?
I can judge the direction of her railgun shots by her hand movements and dodge accordingly... having such thoughts means I probably haven't gone crazy yet.
Incomprehensible.
Truly incomprehensible.
"Human, where did that imposing aura of yours go?!"
Watching Aaron, who had been dodging continuously, the Herrscher of Thunder, incredibly annoyed, made a move she hadn't made before.
For the first time, she raised both hands, channeling the power of [Magnetic Field Rotation] to drive her Herrscher Authority, and blasted two railguns at Aaron simultaneously.
"Dodging and hiding all the time... how can the man who once defeated me be in such a pathetic state!"
"...Forget it, I can't be bothered to say anything."
Aside from [Roman Artillery: Pumpkin], I don't have many effective long-range attack methods. Why can this crazy woman ask me so self-righteously why I'm always dodging?
If I didn't know this crazy woman had this kind of personality, I'd really think she was being sarcastic.
And this attack comes with ill intent...
Looking at the attack from the Herrscher of Thunder, Aaron could clearly see that the energy flow of the two railguns she fired was different from before.
The railguns she fired earlier concentrated all energy into a single point for an instant explosive burst.
But this time was different. The Herrscher of Thunder seemed to gather the energy to a point, but didn't fully condense it.
The energy was dispersed. As a normal attack, its piercing power was obviously inferior to the previous ones.
But at the same time, because the energy was dispersed—it could scatter like a celestial maiden scattering flowers at any moment, attacking Aaron from all angles.
If he relied on instant burst speed to dodge like before, Aaron estimated that the moment he dodged the main railgun, he would be hit squarely by the scattered energy.
Although this tactic was just the basics of the basics for someone with the [Perfect Realm], the problem was...
Damn it, does this mean even if she doesn't actively use the [Perfect Realm], she's subconsciously adapting to the auxiliary abilities it brings?
Sigh, no choice. I didn't want to use the Teigu this early.
I planned to leech off the mental recovery from the mana food and turtle for a few dozen more seconds. Looks like that's not happening.
This time, Aaron didn't use [Demon Armor: Incursio], which consumed a large amount of Orichalcum, but instead chose to force himself into a Honkai Beast form again via the Lion King's [Lion Never Perishes].
Relying on the physical enhancement from the Honkai Beast transformation, Aaron stomped heavily on the ground, narrowly dodging the two railgun shots.
The moment the two railguns missed Aaron, they unsurprisingly split into over a dozen energy beams in mid-air, homing in on Aaron's body as if guided.
Without activating the Honkai Beast transformation, it would have been incredibly difficult for Aaron to perform rapid displacement in mid-air.
But Aaron, having calculated this in advance, had already condensed two blocks of ice via the Meta-Morph Factor the moment he completed his dodge, using them as stepping stones for a double jump.
Relying on this maneuver, Aaron successfully evaded the split attacks.
However, the moment he completed the evasion, the Herrscher of Thunder's follow-up attack was ready.
It was lightning again, but this time, the strike was timed perfectly to hit the vulnerability window after Aaron's dodge.
It was too late to dodge again. In that case...
[Spirit Command: Wall, Activate!]
Activating [Wall], Aaron forcibly tanked the lightning strike from the sky. In that instant, he directly activated the ability of [Galvanism].
[Galvanism] could accumulate electricity to strengthen physical abilities and recovery speed. The lightning striking down happened to assist Aaron in completing the electrical accumulation.
Although Aaron couldn't fully absorb the current and still took some damage, with the [Wall] effect reducing the damage to 25%, the injury was instantly wiped away by the recovery ability boosted by [Galvanism].
Aaron had deduced earlier that attacks actively initiated by the Herrscher of Thunder were completely different in detail from the lightning she summoned.
The railguns actively fired by the Herrscher of Thunder, even if they missed Aaron's body, would continuously decompose surrounding matter due to their decomposition properties.
But the lightning bolts she summoned didn't produce this side effect upon hitting the ground.
That was why Aaron, having observed this over tens of seconds of combat, dared to tank the lightning attack—after all, with the effect of [Galvanism], he could absorb part of the power to offset another part. After activating [Wall], taking a single lightning hit left him practically unscathed.
But only he knew this. To prevent the Herrscher of Thunder from noticing, Aaron didn't use [Galvanism] to perfectly repair his body. Instead, he forcibly used [Current Push] to agitate the power within him, disrupting it slightly to inflict some damage on his own body.
"Guh!"
As the strike concluded, Aaron, with the outside of his body carbonized, spat out a mouthful of blood and looked at the Herrscher of Thunder with a grave gaze, saying nothing.
But in the eyes of the Herrscher of Thunder, Aaron's look and his current state were enough to explain everything.
Hmph, just as I thought. After changing my attack method, this guy can't dodge so easily anymore.
Trading injury for distance. A good idea, but... can your speed catch up to me?
Noticing that Aaron had indeed taken damage, a smile of certain victory finally appeared on the Herrscher of Thunder's face.
Hehe, this insect's combat power is indeed tyrannical, but unable to get close to me, he'll just be slowly toyed to death.
Although it displeases me slightly that I can't beat him at his peak because he just fought that golden-haired brat... these are minor details.
After finishing this man, the crybaby will fall into utter despair. And when that happens, this body will be mine.
As for the Counter Force and the Holy Grail War... hmph, I'll find the remaining Servant sooner or later and kill him.
And how strong can the dogs sent by the Counter Force be?
It's all over.
After returning to that world... hmph, I'll deal with matters then.
For now, I'll dispose of this damned maggot first.
He's still fantasizing that he can trade injuries for distance and then find a way to take me out.
But regrettably—even this distance was something I 'gave' to him.
I intentionally slowed down my movement speed just so a glimmer of hope to 'defeat the enemy' would remain in his heart.
Only in this way would this guy choose not to flee, but instead slowly step into my abyss, finally to be blasted down by me directly.
Moreover, his speed is slower than when he beat me last time... Hmph, is this also because he fought the golden-haired brat?
What a pity. If possible, I still wanted to beat him when he was at full power...
But right now, I absolutely cannot have such boring thoughts.
Before, I had insufficient power because I had just awakened. Now that I have ample power and the opponent is on low health, if I lose again, wouldn't I lose all face?
Can't be careless.
Once he gets a bit closer, I should accelerate and retreat.
Plus, there's a residential area behind us. This man will inevitably be constrained in a residential area.
After all, judging by his previous style, he was so friendly to the crybaby knowing I was inside her... Heh, with that hypocritical personality, he'll definitely try to protect those humans he sees as 'innocent.'
It's over.
Although I still need to be careful, no matter how I look at it, it's all over.
As Aaron approached her again, the Herrscher of Thunder fired two splitting railguns just like before, while simultaneously using her Herrscher wings to attempt a retreat.
But in that moment, seeing this movement from the Herrscher of Thunder, Aaron knew this was his last chance.
Of course, he had long realized the Herrscher of Thunder was maintaining distance.
But the problem was, even using the Honkai Beast transformation, Aaron still hadn't used his full strength.
From the start of the battle until now, he had been hiding a trump card.
A trump card he had used on the Herrscher of Thunder, but one she didn't know the mechanics of.
And Aaron had never used this trump card in front of Raiden Mei even once.
When he killed Gilgamesh and Diarmuid, Raiden Mei hadn't arrived at the scene.
When he killed Lancelot, he didn't even use this move.
In the duel with Artoria just now, he held back this trump card without using it.
So the current Herrscher of Thunder had made the wrong judgment from the very beginning.
Aaron's injuries were self-inflicted; that state of weakness was ultimately just a disguise.
Aaron had seen through the Herrscher of Thunder's tactics long ago—after all, this tactic was basically "scattering bait to lure the opponent into one's own combat rhythm." Aaron had done this plenty of times, and he did it more proficiently and covertly than the Herrscher of Thunder.
He followed the Herrscher of Thunder's rhythm only because he judged it would be advantageous for him too.
Now, Aaron could feel his odds of winning growing larger and larger.
And the instant the Herrscher of Thunder before him began to move, Aaron completely unleashed his strongest power.
[Ittou Shura, Activate!]
As this powerful skill erupted from his body, Aaron could feel his extracted potential being continuously converted into power.
And after his potential was converted into the purest power, he knew the moment he had longed for had arrived.
Since obtaining [Current Push], he had been accumulating power.
And now, his fighting spirit had reached its peak, and his power, accumulated over several days, exploded all at once under the drive of [Ittou Shura].
Then, at this stage, did he need to endure any longer?
There was no need to suppress that power anymore.
Release the explosive power within all at once, and then...
—Magnetic Field Rotation, BREAK THROUGH FOR ME!