"Boom!"
"Boom!"
"Boom!"
Throughout the academy, explosions continued to erupt in every corner, causing the historically rich buildings to gradually collapse.
The black-clad magus, accompanied by their black panther-type automatons equipped with Fusion Explosion, were relentlessly ravaging the academy.
They attacked any human on sight and destroyed every building they encountered. Combined with the automatons that had gone berserk, the professors and students found it extremely difficult to resist.
Even the disciplinary committee members and the security guards fell one after another, and even the automaton masters among the guards were helpless, lying in pools of blood.
The academy had turned into a chaotic battlefield, with only a sharp, piercing song echoing throughout. The magical soundwaves continued to exert influence inside the academy, controlling all automatons and interfering with every magic circuit, creating a one-sided and extremely unfavorable situation.
"Buzz!"
At a certain moment, in one corner of the academy, space rippled, and a group of people emerged from within.
Naturally, it was Rozen's party, who had directly transferred from underground via Space Manipulation Magic.
However...
"Ah!"
"Ugh!"
"Ow!"
The moment they appeared in the academy, Irori, Yaya, and Komurasaki immediately let out startled cries, their figures becoming somewhat unstable.
This was proof that they were being interfered with by Multi-Controller.
At that moment, the song released through Multi-Controller was invading the hearts of Irori, Yaya, and Komurasaki, attempting to overwrite their hearts and seize control of them.
However, as banned dolls, Irori, Yaya, and Komurasaki could generate their own mana. Although not much, it was enough to resist the invading magic to a certain extent, preventing their hearts from being rewritten.
At the same time, through the channel of their contract, Rozen's mana also surged into the three sisters' bodies.
The abnormalities in the three were immediately dispersed by the overwhelming mana, allowing them to gasp for breath heavily.
"Are you alright?" Rozen looked at the three sisters and asked.
"I'm fine, Rozen-sama."
"I'm okay too."
"I'm still a little scared..."
Irori, Yaya, and Komurasaki responded with lingering fear.
The power to directly invade and overwrite their hearts was indeed terrifying for automatons. Fortunately, they were Rozen's automatons, and not just any automatons, but forbidden ones who had signed Shikigami contracts with him. Resisting Multi-Controller was no longer an issue for them.
However...
"Why is Multi-Controller appearing in the academy?"
"Could Professor Ionela have been used again?"
"What exactly is happening?"
Irori, Yaya, and Komurasaki looked at each other in confusion.
"I'm not sure either," Rozen said, unexpectedly calm. "But it's certain that a fairly strong force has invaded the academy."
Though he didn't know their exact background yet, surely they couldn't be just ordinary people, right?
Just as Rozen thought this, an attack came.
Several plasma blasts evaporated the surrounding air as they shot toward them.
Upon closer look, several black-clad magus had unknowingly surrounded them, accompanied by black panther-type automatons, launching attacks by spraying scorching plasma.
"This is... Fusion Explosion?"
Thanks to his Wise Eye and Mind's Eye, Rozen instantly gained valuable information, seeing through the magic his attackers were using.
Among offensive magic, this was quite a famous and powerful one — the collapsing buildings were proof enough.
Unfortunately for them...
"Yaya."
"Yes!"
At Rozen's command, Yaya leapt forward, standing in front of the group, ready to face the incoming plasma blasts.
Facing the scorching plasma balls rushing toward her, Yaya showed no hesitation, clenching her fists.
"Boom!"
With a muffled impact, Yaya punched a plasma blast away.
"Boom! Boom! Boom! Boom...!"
Yaya's fists continued to move swiftly, knocking away each incoming plasma blast.
"What...!?"
"Impossible!"
The black-clad magus were all stunned by this sight.
There were two reasons for their shock.
The first was that Yaya was actually punching away magic of the Fusion Explosion caliber with her bare fists.
The second was that Yaya was clearly using magic.
"She can use magic inside Multi-Controller?"
The black-clad magus were filled with disbelief.
Inside the area affected by Multi-Controller, even if one could resist the song and avoid being controlled, they would be unable to use magic — this had been confirmed during the previous Multi-Controller-induced riot.
Because Multi-Controller only stopped interfering once the automaton's heart was successfully rewritten and placed under the control of the user, allowing the automaton to use magic freely again. If the rewriting failed, Multi-Controller's power would continue to invade the automaton.
And due to the Principle of Incompatible Magical Activity, a single entity couldn't host two simultaneous magic effects. Thus, automatons under the influence of Multi-Controller couldn't use their own magic.
This was why banned dolls like Sigmund and Garm, even when not controlled, couldn't fight and became burdens during Charlotte's battles.
Yet Yaya's magic had been successfully activated.
The reason was simple — Rozen now possessed countless ways to counter Multi-Controller.
For example, Rozen could deploy barriers around Yaya that resisted Multi-Controller without affecting her movements, allowing her to continue fighting.
He could also simply erase the Multi-Controller magic invading her body — using the power of Shaula Viola to neutralize it, Mesarthim Adamas to reflect it, Al Meissa Mercury to devour it, or Sadalmelik Albus to rewind it.
Of course, there was an even simpler method.
"As long as the automaton master's domination power is strong enough and the mana is high enough, it's possible to forcibly activate the magic circuits. When magic takes effect, the mutually exclusive interference caused by the Principle of Incompatible Magical Activity will prioritize the newly activated magic over Multi-Controller."
In other words, with mana and domination ability surpassing Multi-Controller, it could be forcefully resisted.
Easier said than done.
Multi-Controller was used together with Infinite Chain Reaction, meaning it amplified the user's mana many times over using only a single person's mana, enough to cover an entire city. To surpass that level of mana and domination was nearly impossible.
But for Rozen, it was a piece of cake.
Not to mention his mana, in terms of domination power — when it came to controlling familiars, shikigami, and automatons — who could possibly surpass him?
Rozen also possessed the knowledge of Multi-Controller and had researched countless countermeasures against it long ago.
"Take care of them, Yaya, Irori, Komurasaki."
Without hesitation, Rozen gave his command.
"""Yes!"""
Irori, Yaya, and Komurasaki immediately erupted with magical power and charged forward.