The Seventh Head of the Demon King
In the white wasteland where only snow stretched as far as the eye could see, a cold wind whistled past my ears. I lay there, groaning in agony. Before me stood a figure clad head to toe in armor that swallowed all light—an enormous silhouette, three times the size of any ordinary person.
The Demon King.
I struggled desperately, fighting the demonic energy he had forced into me, refusing to become a soulless puppet dyed in ash-gray.
Ah, no… I can’t… A puppet… I can’t become… something like that…
Huh…?
But… if I become a puppet… why was that… bad again…? No, no matter the reason… being controlled… is wrong…
Then something inside me whispered, urging me on.
The plan has gone awry. But it doesn’t matter. Thanks to the Demon King, I’ve reached you far sooner than expected.
A voice that felt like it would split my skull. It wasn’t the Demon King. The tone was nothing like his oppressive presence. Instinctively, I knew this was something else entirely—an entity whose very voice dripped with unbearable temptation.
Wh-who… are you…? Help me… please, help…
There’s no reason to tell you, and even if I did, you wouldn’t have time to understand, pitiful creature. If you resist, the Demon King will be inconvenienced. So for now, I suppose I’ll lend your body to him.
What… the…? Hngh?!
The voice laughed strangely and twisted my will until it shattered completely.
No… Demon King…
…Suddenly, my thoughts stopped. Why had I been resisting?
Because he’s… my master…
The reason I was born into this world was to offer my body and soul to the great and mighty master before me, and to the transcendent beings beyond who granted him power. Why had I ever tried to resist?
“Master… sir…”
My body trembled with the pleasure of submission. I collapsed to my knees. Between my spread legs, a pale yellow liquid—my body unable to contain the pleasure that had shattered my reason—puddled on the snow, sending up wisps of steam.
“Master’s… bitch… offers… everything. Kaira… gives you… her all… Soul, memories… will… All of it… belongs to you, Master…”
“Oh?”
The master seemed to sense something from me and offered a weighty murmur of admiration. Beyond his feet lay the saintess’s corpse, her head crushed and blackened. It was only natural. Anyone who dared oppose the master deserved to die.
“Truly a peculiar one. You are no mere novice mage girl. You wield a strange power, and even after fully accepting the blessing, your intellect remains intact. Most of all…”
The master placed a hand on my head. Warm blood trickled down my face—perhaps the saintess’s final struggle had damaged his armor slightly.
“I sense a strange presence within you. Something akin to the gods beyond who granted me power. Very well. In place of the foolish head that was severed, you shall become my seventh head.”
I was overjoyed. Heart pounding with delight, I forced my now-blackened heart to calm and answered my master’s rightful command.
“Yes… Thank you, Master… As you command…”
“Splendid. Then I give my first order. Slaughter your former comrades who still draw breath. This command must be fulfilled.”
“It… must be fulfilled…”
The moment I answered, tentacles of pure blessing and jet-black wings that devoured even the brilliant snowlight burst from my armpits, tearing through skin and clothes like blooming flowers.
“Heehee…”
Without hesitation, I killed the dwarf, the ogre, and the elf—one by one—returning their lives to the moment of their birth.
“P-please… save me… please…”
Something small and soft was clutched in my hand, begging in a frail voice. Tears streamed from wide, trembling eyes. A girl around twenty, the same age as me. She had come with the master’s army on a mission to liberate the imperial citizens—a child found in a tiny northern village.
Her skin was a little rough from farm work, but she was clearly the pretty girl every young man in the village had admired. Now she was held at my eye level, pleading desperately. Even as she sobbed and begged in a voice crushed by terror, her gaze kept darting behind me. Of course it did.
Countless wings of darkness rose from my back, each one bearing the people she had known—people who were now nothing more than puppets. The moment the tentacles touched them, the blessing had spread from the point of contact, turning them into perfect dolls for the master.
I extended one wing and gently stroked the girl’s head. An idea had come to me.
“Eek…!!”
“Hehe. Don’t worry so much.”
My voice came out softer and less hostile than I’d expected. A flicker of confusion and hope crossed the girl’s face.
“I’m simply giving you a chance. The villagers hanging behind me as dolls for the master—they’re precious to you, aren’t they?”
“Y-yes…”
I smiled sweetly.
“Then let’s make a bet. With these beautiful…”
I fluttered several strands of dark tentacles in front of her face. The terrified village girl shuddered violently at the sight.
“…wings, I’ll touch your body a little. If you endure it and withstand the master’s blessing, it’s over. How about it? It’s not a bad deal. The master’s other subordinates have no sense of aesthetics—they just kill, crush, break, and corrupt.”
I felt her lips trembling. She was hesitating, but she also knew she had no other choice. By now, she must have been thinking:
If it’s me, I can endure. I have to, to protect the people I love…
I didn’t miss the moment her hesitation turned into resolve. Strength returned to the nameless country girl’s eyes, and she answered in a clear voice.
“I understand. Just… keep your promise.”
“You’re wonderful, big sister. I’m Kaira, a good girl who doesn’t lie. Then…”
I released her neck gently and extended several tentacles. Before she could react, her skirt—woven from coarse, sturdy peasant cloth—was shredded to ribbons.
“Huh…?”
The girl’s green eyes widened in shock. She had never imagined this would happen.
So sweet… That terrified look on a young woman’s face… it’s so… delicious.
Thinking that, I spoke calmly, my fingers brushing mockingly beside her golden pubic hair—the precious place she had likely never allowed anyone to touch, or only offered carefully to those she loved.
“Well then, let’s not waste time teasing. Shall we start with the important part?”
“N-no… wait…!!!”
“Ehehe. Too late. Here we go.”
Three tentacles shot between the girl’s legs.
“Hngh?!”
The lovely sex of a girl raised preciously, never imagining such treatment despite her farm work, was invaded by wings that were darkness incarnate.
“Hngh…? Eh? Ah… ugh… eh…?”
The girl’s mouth opened and closed, unable to comprehend what was happening—something she would never understand. A satisfied smile spread across my face as the pink flesh near her entrance slowly turned ashen gray.
“How does it feel, big sister?”
“Hngh… th-this… what… is this…? What… ah, no… don’t… it’s disappearing… I’m… disappearing…”
Overwhelmed by the terror of her body and mind being consumed by the demonic energy spreading from her most precious place, the girl babbled incoherently. She looked so adorable. I chuckled at the sight of her already crying.
“Hee. Already like this? It’s barely been ten seconds. Do you really think you can endure, big sister?”
Her reply was unexpected.
“I… I have to… endure… I have to… get them back… Father… and Marta… everyone…”
Even while being penetrated by otherworldly tentacles, she still had enough reason left to answer cutely. I replied kindly.
“Is that so? Understood. One minute. If you endure for one more minute, I’ll return everything.”
“Th-that much… I can… hngh?!”
I shoved another dark tentacle down the girl’s throat.
“How noisy. Just endure quietly without talking.”
“Mmph… ngh… ugh… hngh?!”
While I moved the tentacle in her throat back and forth, I tore open her slightly sun-tanned apricot-colored shirt and laid more tentacles across it. The tentacles mercilessly kneaded her full, mature breasts—far larger than mine.
“Hngh… ugh…?! Mmph… ngh… hngh…♡”
Perhaps she was the type to feel pleasure easily through her chest. Whether her reason had fled or her mouth was blocked, the country girl could no longer speak. I transformed the tentacles on her breasts into thin strands thin enough to penetrate cells.
“Kgh?!”
They pushed into the milk glands near her nipples. Gray veins—the mark of the blessing—spread instantly across her ripe breasts, and milk that should never have come spurted out.
“Hngh!! U-ugh…?! Ugh… hngh… hngh♡”
Feeling her body changing, the girl screamed and thrashed in resistance. The more she resisted, the more pleasure she felt beyond her limits. It only accelerated her descent into madness.
“Then… here we go♡”
I thickened the tentacle teasing her entrance to a dangerous size and scraped inside her vagina.
“Hngh!!! Ngh… ugh…!!! Hngh… nghhhhh!!!!”
The girl plunged into countless layers of climax as pitch-black blessing spread through her entire body. Only after watching her once-beautiful emerald eyes turn completely black did I withdraw all the tentacles at once.
“Hnghieee?! Ah, haaah!!!”
Even the sensation of the tentacles leaving triggered another mind-numbing orgasm.
I looked down at the girl collapsing to the ground, dirtying the snow with her now ashen urine, and asked indifferently.
“How was it? Exactly one minute. Are you satisfied?”
“I… I… endured… I held on… even though… I came so much… I endured…”
I gazed with pure admiration at the girl who still clung to a thread of reason despite everything.
“How unexpected. A farm girl like you still retaining some sanity. Is this the potential of humans?”
“Th-that’s right… so… keep… your promise…”
I gently stroked the cute girl’s head.
“But big sister, what should I do…?”
“Wh-what…?”
I winked with one eye and gave her a smile that belonged to no world.
“It was a lie. There’s no way to remove the blessing granted by the master and the transcendent beings beyond.”
The girl’s now-blackened eyes widened as if they would burst, and murky gray tears spilled out.
“Th-then… ah…? Ha… heh… ah… ugh… ah… eh…”
And that was the end. The innocent country girl who had believed her will could truly save the villagers collapsed the moment she realized it had all been an illusion, broken beyond repair.
I kissed her now-adorable cheek.
“So from now on, give birth to many children who will serve the master, understood?”
Leaving behind the former country girl—now nothing more than a meat puppet in our army—I walked once more with the forces gathered in this village.
Because I had to offer the Empire—and every being that walked on two legs and boasted of reason—to the master and the transcendent beings he served.
…Rin. You said you’d help. Is this… right…?
Half-awake from the nightmare, I pouted at my slime daughter whose tentacles were buried deep inside my brain.
“Th-that’s… No, this isn’t my fault—it’s Mom’s! Did you really spend the entire journey having these completely broken delusions? Even I can’t easily correct such deep fantasies…”
Even as I glared at Rin, who was getting angry instead, I sighed and answered.
“It’s not a delusion. It’s trauma… The journey was that painful. I kept wondering what would happen if I ended up like this.”
I added one more thing.
“…Hey, wouldn’t readers find it more interesting if the story included something like this?”
Rin scolded me, poking my side repeatedly with her small, soft, human-mimicking tentacle.
“This is supposed to be the introduction to a serious encyclopedia, not an erotic novel!! Please recall your adventure properly, Mom. I’m taking time out of my schedule to help you.”
I lifted my daughter’s hand and gave it a light kiss.
“Wh-what are you doing, Mom…!”
“Mm. As expected, Rin is just too cute. Anyway, I got it. It was a joke. Then… even if it hurts, shall we try organizing my thoughts again…?”
The slime daughter gave me a look that said “what am I going to do with this mother” before her expression turned serious again.
“Understood. This time, I’ll help you organize your thoughts properly.”
And so, once more, I sank into the dream of sifting through my memories.