In the Infirmary (1)

I bit my lip so hard it drew blood and desperately clenched my pelvic muscles. A fierce, tearful battle was raging under the desk between the lewd tail trying ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠to burst out and me trying to stop it.

That's when it happened.

"Ho oh, splendid. Truly the top-ranked student of the year? Everyone, stop what you're doing and look at student Han Yi-seo."

'......Please, why are you doing this to me.'

At Professor Lee Dae-hee's admiring voice, all eyes in the classroom instantly swiveled toward me. The gazes of the students who had stopped releasing their magical power all fixed on me at once.

With my thighs tightly clenched, my face flushed and drenched in cold sweat, I trembled violently and lifted my head with great difficulty.

The students were gaping in astonishment at the 'pink aura' thickly rising around me like a heat haze.

"Wow... insane. She hasn't even started releasing her magical power seriously, and it's already so vast it's leaking out...!"

"Is that the aura of the top student? It has no form, yet it's making the space ripple. And the color is so... how should I put it, alluring."

"More than that, the top student's breathing is really ragged. Is it hard maintaining that much power?"

No. No, you stupid idiots!

This isn't my magical power gushing out, it's a mass of pink pheromones I'm uncontrollably emitting because I'm in heat right now!!

But there was no way anyone could know my inner thoughts, and the students' awe (and inexplicable excitement) toward me only grew thicker.

"Hey, Han Yi-seo, are you okay...? Your complexion looks really bad."

Of all times, it was then. The male student next to me, noticing my abnormal state, suddenly leaned his upper body toward me with a worried face.

'Shit, don't come...! Please don't come closer!'

My near-screaming inner thoughts, of course, didn't get through. The moment he got closer, the raw 'magical power' emanating from his body touched my skin directly.

To a normal person, it would just be a faint energy, but to me, now transformed into a succubus in heat, that magical power had a completely different meaning. It was no different from a dangerously sweet aphrodisiac that felt like it was stabbing directly into my brain.

"Hng, haaah...!"

Instantly, a sticky, lewd moan that even shocked me shot out from between my tightly clenched lips.

The moment I smelled the male student's magical scent, a tingling sensation shot through my lower abdomen, and I felt something hot well up and seep out from inside me. My inner thighs trembled uncontrollably, and the tail I was desperately trying to hide under the desk thrashed wildly, wanting to wrap itself around his waist.

"Huh, huh? Yi-seo... you're sweating so much? And your body is really hot too... Huh?!"

The male student, who was trying to support me, flinched and pulled his hand away as he went to place it on my shoulder. His face turned tomato-red in an instant upon touching the thick pink pheromones—which he mistook for vast magical power—emanating from my body. He, too, was being affected by my pheromones, his breathing becoming ragged and his pupils growing hazy.

'Aaaah! I'm really at my limit! At this rate, I might pounce on this guy without realizing it and suck out his vital essence...!'

Just as I was about to lose the last thread of my rationality, a voice of salvation came.

"Hmm. That's enough. We've sufficiently witnessed the top student's aura, so you may withdraw it now."

It was Professor Lee Dae-hee. He was stroking his beard and looking down at me with an extremely proud (from my perspective, utterly maddening) expression.

"It seems you've overloaded your magical circuits from forcibly drawing out such vast power. Your face is flushed red and you're sweating cold sweat—classic symptoms of 'Magical Fever'. There's no need to push yourself this hard from the very first class."

That's not it. It's not Magical Fever, I'm just in heat. Please, save me.

"Student Yi-seo, go to the infirmary immediately to rest and stabilize yourself. Will the student next to her help her there?"

"Ah, no!!"

I shouted, almost like a scream. If I got supported by a male in this state, I couldn't even guarantee what I might do.

"I-I, hng... I can go by myself...! Haa, haa..."

I leaned on the desk and barely managed to stand up. My legs were shaking so much it felt like I would collapse any second, but I pressed my bag tightly against my rear, desperately blocking the tail trying to burst out.

The inside of my uniform ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠skirt was already damp and sticky, and I could feel the unpleasant yet strangely erotic sensation of my underwear clinging to my thighs.

"Ooh... She's going to walk by herself in that state?"

"Is that the mental fortitude of the top student... truly formidable."

"But that voice just now... wasn't it strangely seductive? My heart skipped a beat for a second..."

Leaving the murmurs of my classmates behind me, I stumbled out of the classroom in an awkward posture, rubbing my thighs together as if fleeing.

With every step I took, I felt like the squelching sound between my legs would leak out, driving me insane. Whether it was the restroom or the infirmary, I had to lock myself in some deserted place and release this overwhelming heat by myself.

"Haa... haa... I'm going crazy, seriously..."

The academy hallway was quiet.

It ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠was a huge relief that it was deserted due to class being in session. I leaned against the wall, barely managing to catch my breath. Every time I moved, my hypersensitive skin rubbed against my blouse and skirt, sending a thrilling pleasure straight to my brain.

In my former male life, I had never once gotten excited just from my clothes brushing against me while walking. But this damn succubus body made every nerve in my body stand on end from the mere act of walking itself.

"Seriously, I'm losing my mind... what am I supposed to do..."

A tear trickled down.

This is an academy I have to attend for the next four years. All the students here are aspiring mages and knights. Am I supposed to end up like this every time these guys use their magical power?

Furthermore, the System window warned me that if I don't copulate with someone and suck their vital essence within a month, I'll starve to death.

'Me... doing *that* with a man? That thing entering my body?'

Just the thought made me break out in goosebumps all over. Even if my body had become the world's most beautiful girl, my essence was still that of the wholesome young man in his twenties, Lee Jeong-hoon.

Staggering, I finally reached the infirmary.

Fortunately, a sign saying [Gone to the Medicine Storage Room. Back shortly.] was hanging on the infirmary door.

"Saved..."

I went inside ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠the empty infirmary and collapsed onto the innermost bed as if diving. I snapped the white curtain shut and curled up so no one could see me.

Burying my face in the soft blanket, I let out a ragged breath. Being away from the source of the magical power in the classroom, the boiling pleasure and heat seemed to be subsiding slightly.

"Haa... I think I might live now..."

As the tension eased, the strength I was putting into my rear also loosened smoothly.

—Boing.

The demon's tail with its red heart-shaped tip popped out from under the skirt and wagged happily.

Hugging the blanket, I stared blankly at the ceiling.

'What do I do from now on? About the vital essence absorption... Couldn't it be substituted by eating blood or saliva full of magical power? Like a vampire.'

If it absolutely requires going all the way (?) to be resolved, then my life is truly screwed.

It was just as I was seriously pondering my future survival strategy.

—Rumble.

The sound of the infirmary door opening reached my ears.

'Is it the nurse? Thank goodness. I should pretend it's Magical Fever and ask for some sleeping pills......'

It was the very moment I thought that and tried to sit up.

"......!"

The instant the door opened, my body, sensing 'that thing' flowing into the infirmary, began to convulse like crazy.

It was on a completely different level from the rookie students in the classroom. A well-honed, weighty, and dense magical power of an adult male began to fill the infirmary. It felt like I was inhaling a concentrated aphrodisiac gas deep into my lungs with every breath.

And for good reason. To hold a teaching position at the Academy, the highest educational institution, one had to be at least an upper-class mage or knight. If the magical power of the first-year students I sensed back in the classroom was like unrefined, light sugar water, the magical power of the man who had just barged in was like a decades-aged, top-tier toxic wine—no, it was the undiluted essence itself, melting my brain directly.

"Huaah, ah, aah......!"

The heat I had barely suppressed exploded like an active volcano, and an uncontrollable cry of ecstasy burst from my mouth. My back arched like a bow, and my inner thighs trembled violently as if having a spasm. The inside of my skirt was already beyond salvageably wet, a sensation that should have been unpleasant, but even that registered in my brain as an insanely pleasurable stimulus.

"Hm? This dangerously sweet smell...... A magical power overload? Who's there behind the curtain?"

A low, soft male voice. And the sound of dress shoes approaching me.

Step, step. The closer his footsteps got, the more the scent of the magical power he emitted ruthlessly shredded my rationality.

'No, please, don't come! If you come now, I don't know what I'll do!!'

Though I resisted, crying tears of blood in my mind, my body had already been completely consumed by the succubus's instincts. The wagging tail was now standing stiffly erect, throwing a tantrum, wanting to jump out from behind the curtain and wrap itself around the approaching man right that instant.

—Snap!