Becoming Kyubey
I woke from sleep to find myself lying face-down on a soft bed. Ugh, I’d slept so long my head was pounding. Rubbing my aching temples, I sat up and realized I was in a well-decorated private room. I slipped off the canopy bed and tried the door, but it was locked tight. It only opened from the outside.
“Master.” I called out, but there was no answer. Was she still asleep?
In any case, I now had light purple skin, horns on my head, wings on my back, and a heart-tipped tail above my rear. I had become a full succubus. I gently scratched one of my still-small horns. The sensation was dull, yet I could feel it as clearly as if I were scratching skin. It would have been nice to have a mirror, but I couldn’t find one anywhere.
I sat on the bed with nothing to do, waiting. The longer my master remained silent, the more uneasy I grew. Had something happened?
With a click, the door finally opened and QA—the succubus—stepped inside.
“Hiii~ Long time no see~!”
“Ah, yes.”
“Aww, it’s been a whole month and that’s your reaction~? I’m your mom, you know~?”
“But I already have a mother?”
“You’re a succubus now~ Since you were reborn as one, that makes me your new mom~”
She flapped her wings and swished her tail playfully as she approached, inspecting the horns on my head and the new wings on my back. An inexplicable sense of closeness washed over me, so I obediently let her examine every inch. After checking the pattern on my lower belly, she nodded with satisfaction.
“Mm-hmm, it turned out perfectly. Now you and I are the only two succubi left on this continent~”
“What exactly is a succubus?”
“Aha~ That’s right~ Let me tell you all about us~”
QA explained the history of succubi. They were an ancient species that had survived since time immemorial by feeding on human essence. Their peaceful symbiosis with humanity had been shattered by the rise of the Church of the Sun God. The church branded them evil demons and hunted them to near extinction, burning them at the stake.
“The humans who worshipped the Sun God claimed we were wicked demons and burned every last one of us.”
“When did this happen?”
“Hmm~ About four hundred years ago? It was right before I fell into my long sleep, so around then~”
“My goodness… Then how old are you, QA…?”
“I don’t know exactly~ Before sleeping for over four hundred years I lived maybe a hundred years or so…”
At least five hundred years old? Despite her youthful appearance, she was ancient. No wonder they were called an immortal race.
Regardless, the traits she described were straightforward: succubi absorbed and lived off human essence. Essence was a form of bio-energy produced in large quantities when humans became sexually aroused.
“We can absorb it through direct intercourse, but making the target have wet dreams is much cleaner, so we prefer that method~”
“Ah… so that’s why the researcher drugged me and put me to sleep. It was to induce a wet dream.”
“When a succubus drains essence through a wet dream, it completely wipes away fatigue and stress. That’s why we’re so popular~ I get to feed, and the target feels refreshed. Everyone wins~”
“Does it harm the body?”
“Hmm~ If you drain too much at once, it can temporarily lower their libido and stamina.”
But why wasn’t my master waking up? A strange unease settled over me.
“The surgery seems to have gone well. Separating an Abaddon’s main body is major surgery, so I was worried, but their skills really are excellent.”
“What? What did you separate?”
“The Abaddon main body that was in your neck~”
Her words struck me like a blow to the back of the head. So that was why my master had gone silent—because it had been removed from my body?
“What did you do with that Abaddon? You didn’t kill it, did you?”
“I don’t think so? Something about a cloning experiment using Abaddon. The research had been stalled because they needed a mature specimen, so they were thrilled~”
“No…”
With my master’s presence gone, an aching emptiness opened inside me. Still, the knowledge that it wasn’t dead gave me hope. We would meet again.
Overwhelmed by the shock, my strength gave out and I collapsed onto the bed. QA sat beside me and gently stroked my lower belly.
“You two must have been very close~ Don’t worry too much. You’ll see each other again~ Now, it’s time to eat~”
“Eat… what—mmph?”
She suddenly covered my mouth. Lifting my head with one arm, she pressed her small breast to my lips while her other hand continued rubbing my belly.
“Suck hard~ That’s it. Drink it all up like a good girl~”
“Slurp… slurp…”
Following her instructions, I took her nipple into my mouth. Something sweet flowed into me. Nothing physical entered, yet I could clearly feel a warm current. Was this essence? The more I swallowed, the warmer my body grew and the more complete I felt. My worries melted away, leaving only peace.
“Young succubi receive their essence from their mother~ When you have children of your own, you must do the same~”
“Mmm…”
The more essence I drank, the more my mind relaxed. Sleepiness washed over me. As my eyes began to close, I faintly heard QA’s voice.
“I’ll feed you regularly until you reach adulthood~ Just eat well and sleep well~”
And so I lived like a real infant—eating and sleeping on repeat. Three times a day I drank essence; the rest of the time I slept. I became so absorbed in the cycle that I couldn’t spare a single thought for my master or escaping this place.
Meanwhile, my body continued to change. My once pebble-sized horns grew to the size of fists. My wings tripled in size, becoming only slightly smaller than Mother’s. The pattern on my lower abdomen grew larger and more intricate, beginning to resemble the shape of a womb.
“Daughter~ You’ve grown so much~ It’s time to learn a succubus’s techniques~”
I had grown used to the way she dragged out her words, accepting it as one of Mother’s charming quirks.
While latched onto her modest breast, sucking gently, curiosity got the better of me.
“Slurp… But where do you get so much essence?”
“Everyone in the lab is working hard~ Raising a baby succubus takes an enormous amount of essence, you know~”
“How much, exactly? Slurp.”
“Hmm~ About ten people’s worth a day?”
“…Didn’t you say there were only seven men in this lab?”
“Aww~ Women have essence too~ You mustn’t discriminate~”
“Even then, that’s only ten people total… Are all of them being drained every single day?”
“Yep~”
Dear god. Having their essence sucked out daily—I worried whether they were even still alive.
“Back when there were many succubi, we shared the burden like a village cooperative. But now it’s just me, so~ I’m working hard to gather as much as I can~”
“Everyone’s really going through a lot.”
After I finished feeding, I sat up. Mother, who was much smaller than me, plugged a cable into the port at the back of my neck. I hadn’t noticed it when I first arrived because I’d been asleep, but it seemed I was almost always connected. The familiar sensation of my brain being read returned. As I rolled my neck to ease the feeling, Mother spoke.
“Now~ It’s lesson time~ Look into Mommy’s eyes?”
“Yes, Mother.”
Lately, after every feeding I received instruction from her. I was learning how to absorb essence as a succubus and the many techniques for using it.
I felt a captivating energy radiate from her crimson eyes. My mind grew hazy. This was the most basic and essential succubus skill: Charm Eye.
“What was my daughter’s name again~?”
“Kyubey.”
“That’s right~ Your name as a newly reborn succubus is Kyubey~ It’s the name the humans gave their test subject, so remember it well~”
“Yes, Mother.”
I struggled to grow accustomed to her charming aura while answering. Each reply made my consciousness drift further away, but even that sensation eventually dissolved into the pleasant haze.
Ugh, resisting charm was supposed to be the lesson, but it was incredibly difficult. I gathered essence and focused it into my eyes… I moved the abundant energy that filled my body, directing every drop toward my gaze. The more essence I concentrated there, the stronger my resistance became.
“We are alive as test subjects only because of the humans here~ We must obey their every request~”
“Yes, Mother.”
Even as she deliberately distracted me with her words, I finally managed to activate Charm Eye. My mind cleared. When I looked directly into her eyes, Mother smiled warmly.
“You’re getting faster~ Kyubey has real talent~”
“There’s so much essence that it’s easier to control.”
“It’s a shame those lifeless angel eyes of yours remain, but the red pupils are still beautiful~”
The color had changed, yet the dead, empty gaze that marked Eden’s angels had not.
Under Mother’s guidance, I practiced on a goblin brought in for training. After resisting for a while, the creature fell completely under my Charm Eye and obeyed every command with a blank stare. At first it had taken me a long time just to charm it.
“Jump in place!”
“Kruk, kkieek!”
The small goblin began hopping up and down. Its naked body bounced, and its disproportionately large, erect penis swung heavily with each jump. Feeling the essence radiating from it, I grew curious.
“Monsters have essence too. Can we not absorb it?”
“Why~? Does my daughter want to taste a monster’s essence~?”
“I was just wondering.”
“Hmm~ You can, but I don’t recommend it~ It tastes terrible~”
“How bad?”
“Want to try~?”
She touched the goblin’s penis with her finger, then slipped the digit into my mouth. Reflexively I sucked, only to be hit with a revolting metallic flavor. I immediately spat it out.
“Ugh! What is that taste?”
“Isn’t it obvious why succubi choose to live among humans~? There’s nothing as delicious as human essence~”
“Ugh… It completely ruined my palate.”
Having grown used to the refined taste of human essence from Mother, my mouth simply couldn’t handle the goblin’s foul flavor. From now on, I would stick strictly to human essence.
After making the goblin perform push-ups, roll on the floor, and even punch itself in the face, I put it to sleep and released my Charm Eye. Since I was still immature, the essence cost was high and I couldn’t maintain it for long.
A researcher entered, removed the goblin, and I moved on to learning how to reinforce my body using essence.
“This is also an experiment to study essence, so keep thinking about the process while you move it~”
“Ah, so that’s why the implant is connected.”
“Yes~ Everything Kyubey thinks is being recorded~”
The realization that the researchers were watching my every thought sent a thrill of voyeuristic pleasure through me. Then the shame of knowing they could see that pleasure only made me more excited.
Ugh, how embarrassing.
“By the way, may I see Maria soon?”
“Your Abaddon friend? You should be able to meet her soon~ I heard the stabilization process is almost complete~”
“Phew, that’s a relief.”
Master had been transplanted into a clone body created from my own genes and fitted with mechanical components. They had shaped it to look exactly like the old Elisha. Even though we had been separated, Maria remained both my friend and my master.
“Starting tomorrow you’ll learn to absorb essence directly~”
“I’m nearly grown now. I can’t keep drinking from you forever.”
Mother was so petite that when we stood together, she looked more like my little sister or even my daughter. Because of that, I had felt secretly ashamed every time I nursed from her.
“I’m the one who’s sad~ I wanted my daughter to be more spoiled~”
“A week was plenty.”
For one week I had drunk Mother’s essence and undergone explosive growth. Though I was still technically a young adult, once I began absorbing essence on my own I would reach maturity quickly.
“When I become a full adult, my wings and horns will probably grow larger than yours, Mother.”
“Daughter, I hate you~”
She buried her face in my chest and rubbed it back and forth like a child having a tantrum. It was adorable.
“Why do you keep such a young appearance, Mother?”
“When I became a succubus, that was the age of adulthood in my era~”
She had been fourteen—the age of maturity in her time. Fourteen was still the middle of puberty. Looking at her now, her body still lacked the full development of a woman. She might have had her cycles, but calling her an adult felt… a stretch.
“Back then the world was far more dangerous than it is now~ Many humans died to monsters every year~”
Five hundred years ago, technology would have been incomparably primitive. High mortality and short lifespans naturally led to earlier marriages and childbirth.
Succubi could sense which women possessed the potential to become their daughters. The exact conditions were instinctive and unclear, but one thing they knew for certain was that the woman had to be lewd.
“You don’t seem particularly lewd, Mother.”
“Ufufu~ I can’t show that side in front of my daughter~”
She gave me a seductive smile that clashed with her youthful face and struck a pose meant to be alluring. Unfortunately, her childlike body only made it look awkward.
“In the old days Mommy was quite popular~ These days almost no one gets excited by this body, so I mostly extract essence through wet dreams~”
“Ah, yes… anyone who got excited by that figure would be… problematic.”
As I nodded while studying her petite frame, her tail whipped out and smacked me.
“Ow! Why did you hit me!”
“Don’t pity me~!”
Slap!
“Eek! What is that tail made of? It hurts!”
“Hmph! If I pour essence into it I can shatter most trees, you know~”
Slap!
Mother, now thoroughly sulky, trained me in blocking her tail strikes with essence. I had to gather energy at the exact spot the tail would strike to reinforce my defense, but her attacks were so fast I kept reacting too late.
“Wouldn’t it be easier to just strengthen my whole body?”
“How are you going to afford the essence consumption~? Hmph!”
Slap!
“Kyaa! Don’t hit me while I’m talking!”
“To protect yourself, you must be able to defend no matter when or where an attack comes~”
Because succubi lived solely on essence, we needed no sleep. Aside from brief rests, the harsh training continued without end.