Using a Mysterious Spellbook Ended Up Creating a Slave Harem - Chapter 24

Yuzuha Soejima - Part 1

​The day before the Syus Sora Grand Festival, I visited Iroha's former room. Thinking back to how the first crest-enslaved thrall was born here, marking the beginning of my rosy, pink sex life, filled me with deep emotion.

​Since it takes just under two hours to travel here from Iroha's family home, she has gone to pick up her younger sister at the nearest station. After that, they plan to have lunch out before returning.

​I plan to use the same method to turn Iroha's younger sister, Yuzuha, into a crest thrall as I did with Rina. It was simply too much hassle to haul the mattress from the sex room near the school all the way here.

​Right now, I am waiting eagerly for the Soejima sisters' return in Iroha's bedroom. She messaged me a moment ago saying they had finished eating and were heading back, so I only have to endure a little longer.

​Lying down on the single bed in the bedroom while playing with my smartphone, I hear a sound coming from the front entryway. Straining my ears thinking they have finally returned, the sound of the door opening is accompanied by a woman's voice reaching my ears.

​"Gosh, it's way too hot... I'm dripping with sweat just from coming all this way."

"I'll turn on the air conditioner right away. For now, just leave your luggage in the living room."

"Okay, I got it, big sister."

​I can hear footsteps walking down the hallway in front of the bedroom toward the living room; this must be Iroha. Just as I think the footsteps following slightly behind must belong to her little sister—

​"This was... your room, big sister... right...?"

​Suddenly, the little sister opens the bedroom door and peeks her face inside. Naturally, she locks eyes with me, who was inside.

​"……"

"……"

​Faced with this unexpected situation, I also lose track of what to do for a split second. The little sister probably never imagined a strange man would be in her older sister's bedroom either, as she stares blankly at my face.

​"……Yuzuha—?"

​Hearing Iroha's voice calling out to Yuzuha from behind, the frozen time begins to move again. Her eyes widen as she takes a sharp intake of breath, and I realize she is about to scream.

​"Kya—……"

​Just as she begins to shout, the sleep magic I reflexively cast takes effect. Overcome by its power, Yuzuha lapses into a state of slumber and begins to collapse, forcing me to hastily catch her young body.

​"What's wrong? Yuzuha…… —M-Master!?"

​Noticing the bedroom door open from the hallway, Iroha rushes into the room. She helps me support her sister, as I am holding her up in an awkwardly strained posture, and we lay Yuzuha down on the bed.

​"Phew…… She opened the door so suddenly, it startled me."

"……I am deeply sorry for my sister's behavior."

"Well, it's unexpected, but the result is the same, so it doesn't really matter."

"……Then, shall we proceed as planned?"

"Yeah, that's right."

"Understood. In that case, I shall remain outside until 5:00 PM."

"Right, thanks."

"Then, if you will excuse me. ……Um, Master?"

"What is it?"

"Please take care of Yuzuha. Please be gentle with her."

"I know."

​Iroha bows deeply and steps out of the bedroom. I watch her return to the living room to grab her belongings before departing through the front door.

​"She probably truly believes that offering her sister to me to become a crest thrall is what's best for her sister's happiness……"

​Muttering to myself, I return to the bedroom, close the door, and fix my gaze upon Yuzuha on the bed. She is lightly dressed in a way that suits the hot summer, and her black hair is styled into twin tails that just touch her shoulders.

​Furthermore, her face and body shape look exactly like her older sister, Iroha. Having known every inch of her sister, I can only discern a subtle difference in that her body proportions are slightly smaller than Iroha's upon closer inspection.

​"……Well then, let's strip everything off first."

​For starters, I quickly undress her completely, leaving her stark naked. At this point, what catches my attention is that she has worked up quite a sweat.

​Remembering her mention of being dripping with sweat, I hesitate at the thought of letting my tongue crawl all over a sweat-stained body, so I decide to rinse her off in the shower first.

​＋＋＋

​I open the bathroom door, carry Yuzuha over to the washing area, sit her down, and lean her against the bathtub. While waiting for the shower water to reach the right temperature, I also strip naked and step into the bathroom.

​After checking the shower temperature, I begin rinsing her body. I thoroughly wash her young, full body—which looks identical to her sister's—using my palms to stroke and cleanse her.

​"Still, this is pretty dangerous……"

​A high school boy, with his erect penis dripping pre-cum, washing the immature, naked body of a sleeping middle school girl reaks heavily of criminality. Well, it's completely illegal, making me a textbook criminal, I think to myself as I diligently wash her armpits and crotch without omission.

​"……Come to think of it, after binding and violating the others, it's a bit late to care about that now."

​That's right, I'm a criminal, I reflect while cleaning her hairless genitals, which are identical to Iroha's. After spending a fair amount of time washing her thoroughly, I turn off the shower.

​Following that, I wipe Yuzuha's entire body with a bath towel to remove the water droplets. Once the bulk of it is done, I pick her up once again and head toward the bedroom.

​＋＋＋

​The bedroom, cooled down by the air conditioner, feels pleasant against a body heated up from the bathroom. After laying Yuzuha down on the bed, I ponder for a moment on how to go about transforming her into a crest thrall.

​Since I am already satisfied with the method of binding and then awakening Erika and Rina, I think to myself that maybe I'll change up the plan this time and try doing it while she's like this. Concerned about the remaining time on the sleep magic, I check the clock to find that only about fifteen minutes have passed.

​"Let's check and see if I can turn her into a crest thrall while she's asleep for once……"

​Grabbing my smartphone, I climb onto the bed. Looking at her youthful flesh, my penis grows even more rampant. I decide to preserve the image of her pure, virginal nudity as a video recording.

​Since I wasn't able to shoot a video during Iroha's turn, this serves that purpose as well. I record her from her feet up to her head, capturing a close-up shot of her pale, pinkish nipples.

​"Shall we continue then?"

​Setting the smartphone aside temporarily, I cup her head with both hands and observe her face from point-blank range. Though she looks very much like Iroha, she has a more youthful air fitting for a middle schooler compared to her older sister.

​After giving her lovely lips a light kiss, I move my body down toward her feet. Then, lifting her slender legs, I shift her into an M-shaped open-legged position.

​"Now then, I wonder if the color and shape of her pussy are identical to her big sister's too?"

​Bringing both hands to her crotch, I use both thumbs to spread her outer labia wide open. Her light-toned, pink secret flesh is exposed, feasting my eyes.

​"……The color seems slightly lighter than her sister's."

​As expected, the development of her inner labia is more youthful than Iroha's. As for the scent, perhaps because I washed her so enthusiastically in the bathroom, I couldn't perceive much of it.

​Naturally, this is also a place that should be recorded. Holding my smartphone over her crotch, which returned to a vertical slit when I let go, I use the index and middle fingers of my left hand to spread her open, capturing the middle schooler's virgin territory on video.

​Finishing the erotic photoshoot, I place the smartphone as far away as possible. Then, looking at her body and pussy, which are subtly smaller than her sister's, and my penis, which has increased in both length and girth since Iroha's time, I think it looks like it will be a tight fit. Placing a hand on her slight breasts, I activate arousal magic.

​"Thinking about it that way, keeping her asleep is the right call. ……Well then, shall we have a taste test next?"

​Bringing my face close to her spread-open pussy, I plant a single kiss with a wet smacking sound. Then, using my tongue to lick and lap, I trace every single part of her genitalia.

​"Lick, slurp, mgh."

"……Nnh."

"Chu, slurp, lick…… ……You've started getting wet, Yuzuha-chan."

​The applied arousal magic functions correctly, causing Yuzuha to moisten her crotch with fluid even while asleep. While verifying the taste of her love juices before her transformation into a crest thrall, I let my tongue glide through every nook and cranny of her young, lovely pussy.

​"Smooch, slurp-slurp."

"……Nn-nn-h……"

"Chu…… What a cute clitoris."

​She seems to be feeling it despite being asleep; love juices ooze from her vaginal opening and her clitoris becomes erect. Raising my eyes, the tips of her thin chest are protruding and asserting themselves more than before.

​"Alright. Now that she's this wet, preparations should be complete."

​My penis is also desperate to enter Yuzuha quickly, throbbing and overflowing with pre-cum. Taking the missionary position, I take hold of my shaft and rub the glans against her pussy.

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