Broken Possessors of Infinite Regression Academy

Roxanne had always been confident in her abilities. After all, she was the creation of the Succubus Queen, crafted with utmost care and attention. Her confidence was not without basis. As a half-succubus, she had proven herself soon after her birth by seducing dozens of knights single-handedly, demonstrating her prowess.

Even her solo infiltration of the Bellium Academy, without any backup, was a testament to the Queen’s belief in her abilities, certain that Roxanne could escape unscathed even if things went awry, facing dozens of professors and the Dragon.

Roxanne had never doubted herself, always proud of her capabilities, second only to the Queen herself, despite being a half-breed born from human semen.

‘The Queen’s concerns were valid. He’s a monster. Perhaps even more so than that Sword Saint.’

However, when Roxanne realized that the intense battle she thought had lasted an hour was, in reality, a mere 1.7 seconds, she couldn’t help but let out a bitter laugh. She had come to the realization that she had no means of turning the situation around.

[Tell me everything you know.]

Even the 1.7 seconds of resistance had not been due to her own strength but rather a concession to allow him to gather information. The voice that had been echoing in her mind since the beginning was proof of that. Roxanne had desperately tried to maintain her mental fortitude during her solitary struggle. Otherwise, she felt she would have spilled everything, including her liver and gallbladder.

Crack!

“Aaahhh!”

Roxanne screamed as her two wings were simultaneously ripped from her body, feeling as if chunks of flesh had been torn from her back. Her body slumped, kneeling in the puddle of her own blood.

‘I can’t win. I can’t beat him.’

In reality, only a few seconds had passed, but it felt like she had been fighting for hours. Despite this, the exponentially growing magic circles still filled her with dread. Tears streamed down her face, born from pain, regret, and fear. Even in this dire situation, the succubus blood within her instinctively prompted her to accentuate her chest and hips, a futile attempt at seduction that would have no effect on this man.

[You have strong willpower. Staying silent until the end.]

Roxanne shuddered at the voice that reached her ears. It sent shivers down her spine, sounding like a being that had forcibly created an organ to mimic human speech, squeezing out words with an eerie tone. With great effort, she lifted her head. The man approaching her had eerily pale skin, with veins of the same color as mana spreading like a spider web beneath it. His eyes, too, were tinted blue, no longer resembling a human.

His appearance struck fear deep within her, erasing any trace of her previous pride and confidence.

‘I, I have to survive. I must live.’

Roxanne, trembling, clutched her breasts and spread her legs, a natural survival instinct ingrained in succubi. She believed she had done enough by withholding information about her clan, and now she begged for her life, putting on the most pitiful expression she could muster.

“I, I’m sorry. It was my fault. I was arrogant. Please forgive me just this once. In return, you can do whatever you want with my body, until you’re sick of it—”

Roxanne couldn’t finish her sentence. She felt a slight pinch in her neck, and then everything went dark.

Roxanne, feeling a tingling sensation on her neck, tried to scratch it, but suddenly realized that her hand was no longer moving.

As soon as she became aware of this, her vision flipped upside down. Her body remained still, but her perspective rotated, taking in the ground, her body, and the sky in turn.

Her hand, which had been raised, now groped at the space where her head used to be. Her delicate fingers touched the muscles of her neck, and upon realizing that something crucial was missing, her hand froze.

Splat.

The headless body fell to the ground, and the head, lying beside it, still held an expression of confusion about what had just transpired.

‘One down.’

Mira gathered the refined mana that had accumulated on his blade. The succubus, who was supposed to feast on the life force of three professors and hundreds of students according to the original story, and then reappear as a boss in the second half, had met a rather anticlimactic end.

It had been necessary to use the Mana Breathing Technique to bring about this swift conclusion. The sooner such beings were dealt with, the better for us.

‘I’ll need to move soon.’

The longer he stayed in one place, the more refined mana would accumulate exponentially around him. He exhaled, releasing the refined mana once more. The Mana Breathing Technique was still in effect.

Of course it was. The theory behind it completely disregarded the common sense of the human body, transforming it entirely into an organ dedicated solely to magic. It wasn’t something that could be easily activated or deactivated.

‘Not that I intend to deactivate it anytime soon.’

At least, not until the current incident was fully resolved. He had gone through the trouble of conversing with Roxanne to buy himself some preparation time, and he intended to make the most of it.

He reached into his uniform pocket and pulled out a necklace. There was something he needed to do before disposing of the bodies and leaving this place.

“My lord.”

As he held the necklace, Elysier’s voice promptly responded, as if waiting for this moment.

Normally, he wouldn’t use such an obvious magical artifact to communicate with the Demon King, but the current situation was rather unique. And even if someone were to witness this, they would be more likely to notice the Mana Breathing Technique than the necklace.

[What’s the situation?]

Elysier let out a soft gasp at the sound of my voice, which was now infused with magic. He had to forcibly suppress the vibrations in his vocal cords to minimize the magical resonance.

“……It was Astaroth’s doing. The Queen herself only just informed me of what transpired.”

“You only just found out? Does that mean Astaroth acted without the Demon King’s permission?”

“I am also very curious about that. What was Astaroth thinking when she decided to invade the Academy on her own? And why involve the Blast Dragon as well?”

“Blast Dragon?”

The unexpected name caught Mira off guard. Elysier provided additional context.

“It is said that Astaroth made a deal with the Blast Dragon to lure out the Chairman. The Blast Dragon and the Shadow Dragon are sworn enemies. It is believed that the Shadow Dragon’s allegiance to the humans is also due to the Blast Dragon’s influence.”

This revelation raised the possibility that the Chairman’s disappearance in the original story could have been caused by the Blast Dragon. With this new information, Mira felt a sense of urgency. Should he prioritize searching for the Chairman as soon as the Academy situation was resolved?

‘…… But I have no idea where Priscilla is either.’

In the original story, the Chairman’s whereabouts were simply left as ‘missing’, with no further details. Without any leads, searching for her would be futile. As Mira pondered this, Elysier continued.

“The remaining succubi in the Demon World are of no help. They merely repeat the Queen’s words, saying that she will bring results with all her might, so we should trust and wait.”

“She must be desperate if she’s making such promises to the Demon King without her consent.”

“Indeed. What will you do, my lord? If you wish, I can order the Queen to be brought to me.”

“Go ahead. You have the authority to do so.”

Astaroth’s unilateral actions on such a large scale, without the Demon King’s permission, were more than enough reason to summon her.

Especially considering the original Demon King’s reputation for being extremely cruel to her subordinates and treating all other demons in the Demon World as expendable.

“I shall comply. Please take care and stay safe, my lord.”

“I’ll do my best.”

The communication ended, and Mira removed the necklace, placing it back into his uniform pocket. It was time to move on to the next task. He utilized the refined mana to create a communication artifact, a seemingly simple task that was, in reality, astoundingly difficult. It was akin to using water from a showerhead to create a new showerhead.

Mira tested the artifact to ensure it was functioning properly, and then connected with Ingrid.

“Professor.”

By manipulating his vocal cords once more, Mira managed to produce a passable voice, one that would only raise suspicions if someone were to listen very closely.

Student Mira?! Where are you?!

Especially now, as Ingrid was busy fighting monsters and evacuating students, her attention was divided. Instead of answering her question about his location, Mira proceeded with his request.

Just wait, I can only use this communication artifact in certain places. I’ll track your location and—

“Do you remember the deal we made when I gave you the improved method for the wide-range annihilation magic?”

……

Ingrid fell silent, and that silence spoke volumes. She remembered.

“I’m calling in that favor now. Please deactivate the barrier surrounding the Academy.”

Silence turned to astonishment. Mira waited patiently as Ingrid struggled to catch her breath.

What did you just say?

“I said, please deactivate the barrier surrounding the Academy. You’re a Grand Mage, Professor. Surely you know how to shut down its core.”

*Are you under some sort of mind control? Look up at the sky. Even now, that strange thing is being held back by the barrier. Why would you ask me to deactivate it in this situation? If you don’t provide a valid reason, I can only assume you’re under some sort of mental influence.”

“It’s fine. The black aura outside is merely bait to increase the output of the barrier. The real threat is a device installed at its core.”

You said device just now? At the core?

“Yes. A device installed by the demons. It will detonate when the barrier reaches maximum output, like a bomb. It will devastate a third of the Academy, and anyone nearby will surely perish.”

…… Give me some time to think.

Ingrid was still hesitant, even in the face of Mira’s revelation. He understood her dilemma. Not only was she likely suspicious about how he had obtained such information, but she was also in a dire situation, trying to fend off the onslaught of monsters while evacuating students. Asking her to leave her post to deactivate the barrier was a difficult decision.

However, Mira had anticipated this and had a backup plan in place.

“Do you remember the additional condition I mentioned when we made that deal? I said it would sound like a ridiculous request, something incomprehensible to a normal way of thinking.”

……

“Well, as you can see, I’ve kept my promise. Now it’s your turn to uphold your end of the bargain.”

You didn’t have to keep that kind of promise……

Ingrid’s voice was filled with resignation as she reluctantly agreed.

Alright. I’ll do it.

After a moment of contemplation, Ingrid’s response was ultimately affirmative, but her voice sounded weary, as if she had aged ten years in that brief moment.

Can’t you give me some more time? There are still many monsters nearby. They’re too much for the students to handle. I need to deal with them first—

“No, you need to go now. The device is designed to detonate after a certain amount of time, regardless of whether the barrier has reached maximum output or not.”

Ingrid sighed heavily and agreed to carry out the task. The communication ended, and Mira snapped his fingers. Refined mana ignited, incinerating the half-succubus’s corpse.

‘Two down.’

Mira would have preferred to handle this himself, but there were two issues. Firstly, he didn’t know the location of the core. Priscilla and Rosaria had only learned about it after the fact, and in the original story, it had been kept hidden, not openly displayed among the Academy’s defenses.

‘And next…’

Mira began running towards a newly opened portal, one that looked completely different from the ones he had opened before. It was time to face the monster that, in the original story, had pushed Brunhild, Aria, Priscilla, and Rosaria to the brink of death, and nearly wiped out the Academy’s faculty.

It was crucial to take care of this threat before it could fully unleash its power.