Becoming a Full-Fledged Succubus
Around the time my training had nearly depleted my essence, a researcher came in announcing it was mealtime. Oh, it was that researcher who had a girlfriend.
“Wow~ Hello there, Kyubey. What an honor to be the offering for your very first meal. I’m so fucking thrilled! Hooray!”
“Uh, um. Yes.”
The man’s wildly high-strung excitement felt incredibly overbearing. I was startled when he immediately began stripping off every piece of clothing the moment he entered.
“Why are you taking your clothes off?”
“For sex, obviously!”
“We’re not having sex! I’m training to consume essence through wet dreams!”
At my words he froze solid. The cock that had been standing at full attention wilted instantly as he crouched down.
“Damn it… I was so excited to be first, but it’s just a wet dream…”
“Umm….”
Watching him sink into such excessive disappointment made me feel strangely sorry for him. While I stood there awkwardly, unsure what to do, a sharp smack landed on my rear followed by a sting. I turned to see Mother had slapped my butt with her tail, her expression strict.
“Direct intercourse is forbidden before you become an adult~ Now, what did I tell you to do if the food hasn’t fallen asleep~?”
“You said to use Charm Eye to force them to sleep.”
“Correct~ Go ahead and try it yourself~”
I focused essence into my eyes, activating Charm Eye, and met the man’s gaze. He had been so upset that tears had even welled up, but his eyes quickly grew hazy before he slipped into sleep.
Whew. Since he wasn’t on guard at all, he went under easily.
“Well done~ Now gather essence at your fingertip, press it to his forehead, and concentrate on making him have a wet dream~”
I released the Charm Eye, concentrated essence at the tip of my index finger, and a faintly shimmering pink energy appeared. I pressed my finger to the sleeping, naked man’s forehead, focusing on the thought of inducing a wet dream. The pink essence sank straight into his brow.
“Done!”
“Now just wait. Once the essence gathers, you can make physical contact and absorb it~”
The man, apparently dreaming something lewd, squirmed with a sloppy grin on his face. His cock stiffened again as his hips began to move.
Hm. That’s a little unsightly.
“Ehehe, Kyubey. So naughty~”
“…I wonder what kind of dream he’s having.”
“It’s the most obscene dream the person desires, so even I don’t know~”
“Kuhehe.”
The man kept thrusting his hips, shaking his erection. Ugh, it really was unsightly. The more he moved, the more clearly I could see essence gathering thickly around his cock.
“Does the color of essence differ from person to person? This man’s is red.”
“Even among reds there are subtle differences~ Though once you consume it, it gets digested and turns into your own color, dear~”
The amount of essence clinging to the man’s cock was considerable at a glance. Whoa, there’s so much. If I can extract this much essence just from a wet dream, maybe I won’t need to have sex at all.
“You can absorb it after he ejaculates, but I recommend taking it before he climaxes~ It’s cleaner that way~”
“Okay, here I go.”
I touched my finger to the man’s cock and began absorbing the essence. A tingling pleasure rushed through me as it flowed in. Ohh, so absorbing essence like this still feels pleasurable! It didn’t taste as good as the refined essence Mother prepared, but the quantity was so large that I continued absorbing for several minutes.
The more essence I drained, the more his erection lost strength until it hung limp. The man had stopped moving as well, only letting out faint moans. Noticing his complexion had worsened, I asked Mother.
“His color doesn’t look good. Is he okay?”
“You ate too much, daughter~ Is it because he’s big~? What a glutton you are~ It’s better to leave a little behind~”
“Ah, I see.”
I had thought there was a lot, but it turned out I had drained far too much. I draped the man’s clothes over his collapsed body on the floor, then wiped the love juices from my dripping pussy.
Ugh, the pleasure was quite intense.
That was how I learned to consume and use essence. Quite a lot of time passed like that. My horns had grown to one-and-a-half times the size of Mother’s, and my wings had enlarged to match my frame. My tail had fully matured into a perfect heart shape, and the pattern on my lower belly had become as large and ornate as Mother’s.
The body reflected in the full-length mirror a researcher had brought me was unmistakably that of a succubus. Because the transformation had occurred while I still had the piercings, my nipples remained permanently erect and hadn’t shrunk back. My clitoris had grown slightly larger, the ring and the foreskin that once partially covered it now completely gone, leaving it fully exposed.
As I gazed at my even more obscene body, Mother hugged me from behind.
“My daughter is so beautiful~ Congratulations on becoming an adult~”
“Thank you, Mother.”
“Hehe, our family has grown~”
Mother wrapped her tail around mine and hugged my waist, speaking with clear joy. She nuzzled against me, admitting she had felt lonely all those years as the only succubus left.
After reaching adulthood, I learned from Mother how to hide a succubus’s features. Just like when I first saw her, I could conceal my horns, wings, tail, patterns, and skin tone. It was the ability to create a human appearance, like a disguise, allowing me to blend into human crowds. Since it was instinctive and awakened naturally upon maturity, and with her guidance, I mastered it quickly.
“Whoa, that’s amazing. They’ve all disappeared.”
The large horns that had curved upward from either side of my head, the wings big enough to cover my body when spread—everything had vanished. I had done it myself, yet I still didn’t quite understand how it was possible. When I looked in the full-length mirror, even my skin had returned to its pale white, making me look exactly as I had before.
“Heh heh, you look wonderfully energetic.”
“Faust~ You came yourself~?”
“I wanted to see your adult form with my own eyes.”
The white-haired old man I had seen inside the glass tube had come to the room in person. So his name was Faust.
“Well then, are you now a complete succubus?”
“Yes~ Thanks to everyone, I grew up well~”
Mother hugged me from behind and spoke proudly. Faust watched the mother-daughter pair with a benevolent expression.
“It is a good thing that succubi are increasing. Indeed it is. Moreover, thanks to studying Kyubey’s transformation process, our research has made significant progress. We should be able to produce some results soon.”
“Um, Grandpa.”
“What? Grandpa?”
I had called him grandpa to ask about my Master, but veins bulged on his forehead. Whoa, he should watch his blood pressure.
“I am still in my sixties! Call me Director Faust!”
“Yeees… Director Faust.”
“Ahem. What is it?”
Faust cleared his throat, seemingly embarrassed by his momentary outburst, and sat on the bed. Neither Mother nor I were wearing anything, but he paid it no mind.
“When will I be able to meet the Abaddon that was removed from me?”
“Hm. The Abaddon is currently undergoing rehabilitation training to adapt to a composite body that fuses living tissue with machinery. As expected, the experiment using Abaddon was a success. We are seeing results on two different paths toward an immortal body. It is most encouraging. You two are our lucky charms.”
Once he started talking, Director Faust launched into a lengthy explanation of the research progress, beginning from when he first met Mother. He used terms so difficult to understand that I wondered where he got the stamina to keep going. I sat in a chair, half-listening, while Mother had already lain down on the bed and dozed off.
“The special mitochondria possessed by succubi use an unknown power called essence to achieve immortality. I continued research under the belief that if ordinary humans could also utilize the essence present in their cells, we could achieve something similar. However, mitochondria transplantation has failed repeatedly. To increase the succubus population, I brought women who were as lewd as possible to QA, but none met the conditions, resulting in failure again. That was when you arrived.”
“I see…”
“After observing the entire transformation process from beginning to end, I became certain of one thing. Succubi are a new humanity that evolved by using the easiest sexual desire to trigger to harvest essence.”
“New humanity?”
“Genetically, there is almost no difference between succubi and humans. They are more than 99.9% identical. The only differences are the special mitochondria and the physical changes caused by transformation. I have concluded that succubi are a new humanity that evolved long ago through some trigger in order to survive monsters.”
Director Faust believed succubi were biologically an evolved form of humanity. He speculated that the Sun God Church’s large-scale succubus extermination was because they could not tolerate a new humanity that surpassed the humans created by their god.
“To massacre them simply because they cannot accept human evolution—how pathetic those fanatics are.”
“Did Mother not know anything about it?”
“QA had been sealed in a sleeping state for far too long and was on the verge of starvation. The damage to her brain was severe, leaving her memories incomplete. Thanks to that, it was easy to implant memories and turn her into a test subject, however…”
“…Is it all right to say that in front of me?”
“Your own brainwashing has already been completed. How about it? Does it stir any resentment?”
“No, not really.”
Because I already accepted the fact that I was a test subject as natural, I felt a strange sensation but no negative emotions. If they had not treated me as a test subject, Mother would have died long ago.
“You mother and daughter must serve as the stepping stones for humanity’s evolution. Even so, we cannot treat the hope of humanity poorly. I will guarantee you as much freedom as possible. If you wish, you may live outside.”
“Really?”
“Meeting various humans and searching for other succubus candidates would be beneficial. QA was too dependent on the laboratory, and since she was the only succubus, we could not send her out.”
I did not know what would happen with Master, but at least I would be able to go to the surface. First I needed to meet him and talk. After that, he continued speaking until a researcher came to escort him away.
Ugh, I’m exhausted. He talks way too much.
“Mmm… Has Director Faust left?”
“Yes. Don’t you think it’s too much to sleep alone like that?”
“But he talks too much~ Hmph.”
She was sitting cross-legged on the bed, so her small pussy was completely visible, but she didn’t seem to care at all. Come to think of it, she had been naked since the first time we met. Huh, I was naked too yet hadn’t been paying it any attention. I didn’t feel embarrassed or ashamed.
“Do succubi normally not care about being naked?”
“Mmm~ We’re naturally lewd, and~ since test subjects are more convenient naked, we educated them that way~”
“By education you mean brainwashing, right? Why did you make me that way too?”
“Ehh~ Brainwashing is such a harsh word~ I educated you as a mother should~”
No, more importantly, when did she even do that brainwashing? I don’t remember receiving any such education…
“But when did you give me that education? I don’t have any memory of it.”
“According to Director Faust~ it is possible to brainwash the subconscious using the power of Charm Eye and brain manipulation through implants~ It was actually successful~”
“It’s scary to think you can be brainwashed without even realizing it.”
Because she openly told me I had been brainwashed, I didn’t feel like I had been. I didn’t even know what else might have been altered. It felt fundamentally different from the way Master trained and tamed me. Training felt like being guided to change, whereas this brainwashing made me feel as if I had always been this way. In a sense, it might be even more dangerous than the Angel education.
“Don’t worry too much~ Come here and lie down with me~”
“Okay.”
Led by Mother’s hand, I lay down beside her. She turned to face me, cupped my cheek, and looked into my eyes.
“Kyubey doesn’t need to worry about anything~”
“Eep.”
“Now, look into Mommy’s eyes.”
Mother plugged the cable back into the back of her neck and activated Charm Eye. As I stared into her eyes as instructed, my mind grew hazy again and I lost consciousness.
“Kyubey~ Wake up~”
“Huh? When did I fall asleep?”
“A little while ago~ How do you feel~?”
“I feel incredibly refreshed.”
Before falling asleep I seemed to have been full of worries and thoughts, but after a good nap I felt amazingly clear-headed. As I stretched and got up, Mother removed the cable from the back of my neck. At the same time, the unique sensation of my brain being read disappeared.
“It’s a little disappointing, but~ if you want to leave the lab, you can go anytime~”
“I need to meet Maria.”
“Your friend, right~? Then let’s spend some quality time with Mommy until then~”
“Yes, Mother.”
I had to meet Master first and discuss our plans. The goal of creating a new Eden remained the same, but many new complications had arisen, so a full review was necessary. Until I could meet Master, I spent time with Mother while steadily practicing to become familiar with handling essence.
Mother preferred staying shut inside the room, but I enjoyed wandering around the laboratory. Because my feet had been completely transformed—raised onto tiptoes like a ballerina—after becoming a succubus, I had to walk that way, but I freely roamed about, looking at everything. The researchers greeted me warmly and taught me all sorts of things.
Even now I was listening to a blonde female researcher explain a drug that reversed aging using essence.
“This is a prototype rejuvenation drug made using Kyubey’s research data. It’s more advanced than existing anti-aging medicines.”
“If I drink this, I’ll become younger?”
“About one year per bottle? It varies depending on compatibility with the person’s original essence, but that’s our estimate.”
“One year per bottle? That would be incredibly popular.”
“Theoretically, if a single succubus steadily produces it, countless people’s lifespans could become nearly immortal. It’s amazing.”
However, to see proper effects one needed extremely good aptitude, and the side effects were considerable, so it was still far from being turned into a product. It caused excessive increases in sexual desire and allergic reactions.
“It hasn’t been that long since it was made, so it can’t be helped. Still, it’s one step closer to immortality, isn’t it? Ho ho.”
The researcher smiled happily as she spoke. I left the smiling researcher behind and peeked into another lab. There I found a familiar sight.
“Tiriel?”
“Hm?”
The wide, flat tentacle trapped inside a transparent glass tube looked similar to the Tiriel I remembered. The researcher who turned at my voice seemed puzzled at first, but upon realizing it was me, greeted me warmly.
“Kyubey? What brings you here?”
“I was just looking around. Is that tentacle the one that was inside my body?”
“No, not that tentacle. It’s the egg that was in your womb that hatched.”
Come to think of it, when I came here I had mated and produced an egg. They seemed to have done something with the ovum back then, so they made an egg. That tentacle must be what hatched from it. It did look similar, but it was much smaller. Seeing it hanging limply made it look pitiful, so I asked.
“Is that child locked up because it’s dangerous?”
“Originally T-12 is said to be extremely dangerous, so we confined it, but it’s strangely docile. The tentacle that was in your intestines was a bio-suit, correct? Maybe it’s because this tentacle was born from that bio-suit?”
“Probably?”
Tiriel had been modified into a bio-suit and had its aggression removed. It was intelligent enough to converse with Master. If it possessed the ability to combine with a host’s ovum and acquire traits like an Abaddon, then a child born using a human ovum might have especially high intelligence.
“Actually, T-12 is so rare that the research data is managed in Tarykin, so we don’t know much. Even when we try to run experiments, it barely reacts…”
“Has it eaten? What about the baby’s food?”
“For T-12 to eat, it needs to parasitize a host. How could we feed it? We can’t have the researchers get parasitized directly.”
“Aren’t there other test subjects?”
“The director really hates experimenting on people.”
Although Director Faust inevitably used human test subjects for his immortality research for humanity’s sake, he apparently hated it for anything else. That was why they mainly experimented on monsters. This T-12 that hatched from the egg had no interest in parasitizing monsters, which left them in a difficult position.