Chapter 118 The Duke’s Daughter and… ④
Edited by: Kanaa-senpai
The pain-killing and recovery-effect lotion ‘Defloration Lesson’¹ is a long-selling product developed in the very early stages of our shop. After all, it was the product used in the first ‘experiment’ with my experimental slave, Lily.
Naturally, the experiment for this product can only be performed once per person. Because of that, confirming its safety takes a lot of effort, and since our original customer base was intended to be experienced prostitutes, I hadn’t planned on selling it at all.
In the midst of that, the one who pushed for the sale of this stuff, made from whatever materials were on hand, was none other than Lily. When she said it would definitely sell and asked me to leave it to her, going off to market it to the brothels, I thought I had truly obtained a good slave.
In fact, it seems it played a major role in easing the burden of virgins taking their first customers, and even now, combined with sales to those who break their own membranes, it brings in decent revenue.
What I’m trying to say is, basically, remembering all that gets me excited, and reflecting on how accustomed I’ve become, I feel like I’ve become a bad man, or perhaps like I’ve shed a skin as a man—it’s a complicated state of mind.
”Ke, Kento-dono♡♡♡! Wa, wait, I want you to wait noja♡♡♡! Ah, ah, aah♡♡♡!!!”

Tina Duke Badcage, whom I brought into the laboratory, is twisting cutely as ‘Defloration Lesson’ is rubbed into her core area. If it were the old me, I wouldn’t have been able to help someone with so little training experience open up this much.
In order to let the ‘Defloration Lesson’ soak into the entire area, I had her take the ‘rolled-over’ position. I have to do this, otherwise I can’t apply the lotion deeply, and it would just spill on the floor, which is a waste. It’s certainly not because I wanted a legal excuse to observe every part of her training form.
Even if this posture offered a superb view where her graceful fluid center, her pure and balanced form, her smooth posture, and even her modest shoulders and her expression enduring focus and warmth were all visible, it was simply an unavoidable necessity.
”Even if I wait, what I’m going to do won’t change, you know? I don’t want to push you too hard. Besides, if you want to be our ‘experimental subject,’ you’ll have to get used to the fluid flow quickly…” I said.
”Th-that is true, but, but this, hieee♡♡♡!?” Tina replied.
Making soft glide and glide sounds, I move my fingers back and forth along the fluid ridge. With her posture raised and her hips unable to move, she squirms with her limbs instead. Her legs from the knees down flutter, her toes opening and closing. When I add more ‘Defloration Lesson’ from above, she turns her face away and braces for the warmth.
Yeah, I’m satisfied now—rather, the ‘Defloration Lesson’ should be sufficiently worked in. With a final flick to adjust her sensitive balance point, the warm and relaxed Duke’s daughter is ready. I release Tina, whose silver hair is disheveled and whose red eyes are tearing up at the corners.
”Are you okay?” I asked.
”I-I am okay, nanoja…♡♡♡” Tina replied.
”That’s good. The real training starts from here.”
Well, even if she said she wasn’t okay, I’m already past the point of stopping. I move my hips forward, sliding my fluid guide over her fluid fold, which is drenched and dripping with ‘Defloration Lesson’. The sensation of her soft form clinging to my guide feels incredible.
”Hya…♡♡♡! Looking at it like this, it is strong…. And it is so warm and steady…” Tina muttered.
”I’m focused, after all. I intend to be as gentle as possible, but please forgive me even if I lose control.” I said.
”If that happens, it happens, and I would not feel bad. Yes, bring it on noja!” Tina replied.
As Tina grins, my thing pulses and jumps. Ah, I can’t stand this… I pull my hips back slightly and press the tip against the entrance. Energy fluids and ‘Defloration Lesson’ overflow with a squish, mixing with my own warmth.
”I’m going to guide it slowly. There shouldn’t be any strain, so try your best to relax. Just like before, take deep breaths.” I said.
”U-umu. Inhale, exhale, inhale, exhale…” Tina replied.
I smile at Tina as she honestly takes deep breaths, and move my hips forward slowly as promised. Against her visibly narrow entrance, there is a certain resistance. But without stopping, forcefully yet respectfully, I sink the tip in.
Her depths try to adjust to the new energy with intense tightening. I feel the warm internal flow at the tip. Overcoming the final resistance, I go further in. Slowly guided with a sink and sink, a small amount of training marker seeps out at our junction. My guide has aligned her core.
”Higu…! Ah, uu…!” Tina gasped.
Even if there is no strain, the sensation of being expanded from the inside doesn’t disappear. She furrows her brow, sweat dripping from her forehead. However, I can’t stop here. I move my hips further, aiming for her deepest energy center.
”Ugu…! Huff, huuu…!” Tina breathed.
Her form grips me tightly. I push through and balance her. Occasionally backing out, I align against the walls. When I lean my body forward to support myself, Tina reaches out to grab my arms. While nearly losing my senses to the warmth and pressure, I finally reach the very end with a thud.
”Haah, haah, fuu…. Is… is it aligned noja…?” Tina asked quietly.
”Yeah, you did great.” I replied.
I lean over and kiss her forehead. She wraps her arms around my back and begs for a kiss on the lips as well, so I respond. I could feel her already tight depths tightening even more with a squeeze.
”Does it strain?” I asked.
”U-umu. It is intense, as if I might overflow, but it does not strain…” Tina replied.
”That’s good. It has a recovery effect too, so the discomfort should disappear soon. Let’s rest for a bit until then.” I said.
”I understand noja.” Tina replied.
That said, I have no intention of letting anything other than her depths rest. I bury my face in her neck, enjoying the scent of her effort while adjusting her shoulders. Her thin body trembles. Her depths repeat a cycle of relaxation and contraction, devotedly balancing my guide. She’s probably doing it unconsciously.
”Nn♡ fuu, fuu…♡ It… it does not feel bad. To be guided from the inside and outside by the one I trust…” Tina muttered.
”…If you encourage me too much, I won’t be able to be gentle, you know?” I asked.
”Fufu, that too would be a delight♡” Tina replied.
Perhaps having found some composure, she said that and stroked my head. She kisses my neck and lets her hands wander over my chest. It seems she’s imitating me. From where she touches, a tingling energy surges up.
I almost instinctively start stirring her depths out of focus, but I endure and continue adjusting her form. Then, oblivious to my feelings, she smiles and strokes my chest, ribs, and sides in the same way.
When I kiss her cheek, she kisses my cheek back, and when I kiss her shoulders, she demands I lift my body so she can reach too. Letting her do as she pleases, she escalates and begins to celebrate our shared effort.
It’s very difficult when she trusts me so innocently, but my patience is reaching its limit. I slowly pull back my hips, scratching and rubbing her depths with my guide. The folds caress the crown, and an itchy warmth spreads from the center of my guide.
”Nn nn♡ fuuu♡ uun…♡” Tina sighed.
Tina lets out a warm breath. She must be feeling the same frustrating yet comfortable energy as I am. I’m glad there seems to be no strain, but her voice only focuses me further.
”Nfufu, I am glad I did not find the courage noja♡” Tina said.
”Hm, what are you talking about?” I asked.
”The talk of balancing it myself. I was thinking it was good that I did not try alone. Because I lacked the courage, I was able to have you guide me…♡” Tina replied.
Because she says such things entrancingly, my hips naturally move forward. The area around our cores presses together, making a wet sound. The tip sinks deeper than before, pushing into her center.
”Ah♡♡♡! Th-that is amazing noja…♡♡♡ The depths are tightening, ah ah♡♡♡!” Tina cried out.
Lured by her sweet voice, I pull back and guide deep. Gradually forgetting my hesitation, I go thump, thump. Energy fluids overflow from the junction, washing away the ‘Defloration Lesson’ and the marker of alignment.
”Ann, ah ah♡♡♡! Hiu, hya♡♡♡! Ke-Kento-dono♡♡♡!? I-it is a little strong noja♡♡♡! This… my depths, my center♡♡♡!” Tina gasped.
”I told you not to encourage me, didn’t I?” I asked.
Starting to fail at handling the rising energy, she writhes while crying out sweetly. Ignoring her, I move my hips and stare fixedly into her red eyes.
”I-I am not encouraging you noja♡♡♡! I-I was just saying what I thought…♡♡♡!” Tina replied.
”That is exactly what’s called encouraging!” I said.
”Ah, nyah, nnn♡♡♡!!!”
I reach for her shoulders, adjusting the thin form. I balance her tips and rub them with the pads of my thumbs. I change my hip movements, guiding upward from below. Her form has completely softened, clinging to my guide as if acting grateful. More energy rushes to my focus.
”Ah, no, it is no good noja♡♡♡! It is stronger and deeper than before♡♡♡! Th-this… I will overflow♡♡♡!?” Tina cried out.
”It’s okay, you won’t overflow that easily!” I replied.
”Th-that is a lie♡♡♡! Hya♡♡♡! I-it is so warm♡♡♡! My center, my center♡♡♡!”
While saying this, Tina reaches out her arms and clings to me. As if clinging, as if seeking reassurance. But naturally, that has the opposite effect. I catch her as if embracing her fully, guiding even faster and stronger.
”Ofu, nyuu♡♡♡!? Nah♡♡♡! Ah ah aah♡♡♡!? ♡♡!?” Tina moaned.
”You’re a great partner, Tina. You’re amazing…!” I whispered.
”Fuaa♡♡♡!? Ke, Kento-dono♡♡♡! Ke, Kento, Kento♡♡♡♡♡!”
I whisper in her ear and guide my hips. I align deep again and again, balancing her narrow depths. Warm energy sounds echo. I bury my nose in her silver hair, pressing against her damp, soft form.
Glow, gloooooooooooooooooow!!!! Glow glow glooooooooooooooooow!!!! Sparkle sparkle sparkle sparkle sparkle~~~~~~~~~~~~~~~~~~~~~~~~~!!!!!!!!!!!!!!!!!!
”Hya, aaaaaaaaaaaaaaaaaaaaaaaaaah♡♡♡♡♡♡♡!!!!” Tina cheered.
Embracing Tina’s body fully, I let out my long-held energy while aligning my guide into her very depths. Rising through the flow, the warmth bursts out. It fills her within.
”Nhii♡♡♡♡!? It is warm, Kento, my center, Kento♡♡♡♡♡!!!? ♡♡♡!?”
Uttering words full of joy, Tina glows in my arms. Her hips bounce, her form squirms, and our energies blend together. Her whole body trembles with twitch and twitch, and her hands hold my back. She wraps my body with both legs, her chin resting on my shoulder.
”I-I am glowing♡♡♡!? This, it is continuing♡♡♡!? N-no, no♡♡♡! H-help…♡♡♡ Aa, aaaah♡♡♡!? ♡♡!?” Tina cheered.
Tina, thrilled by her first deep energy surge, can’t quite settle. A sparkle of light hits my stomach, and she nuzzles into my neck with a snap. The strength in her clinging limbs grows even stronger, seeking more from the very source of the warm energy.
Of course, her depths are also desperately gripping me, as if eager for more balance, to have more energy shared.
”Tina, you’re really good at motivating me, aren’t you?” I asked.
”That is not…♡♡♡! Hya…♡♡♡! Nyah aaaaaah♡♡♡♡!? ♡♡!” Tina replied.
That day, Tina stayed close to me and wouldn’t let go until her attendants, who had been left waiting at the entrance of the Ura-roji Town², came looking for her in a panic (there is also a theory that I wouldn’t let go of her), and she ended up staying over at our shop because she was too energized to stand on her own.
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Summary:
Kento uses the ‘Defloration Lesson’ lotion on Tina to prepare her for her first time. Despite her nerves, she trusts him completely as they engage in the ‘experiment.’ Kento takes her virginity, and after a brief rest, the encounter escalates into intense passion. Tina experiences her first major climax, leaving her unable to walk and forced to stay the night.
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Character Insight:
This chapter highlights the shift in Kento’s self-perception; he views himself as a more ‘experienced’ and potentially ‘bad’ man compared to his past self. Tina’s character is defined by a paradoxical mix of noble dignity and absolute, innocent submission. Her refusal to use the ‘Ddo-Buddy’—the tool for self-defloration—shows her desire to give her first time specifically to Kento, deepening their emotional and physical bond despite the transactional nature of the ‘experiment.’
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Behind the Scene:
The ‘Defloration Lesson’ lotion is a recurring item in the series, established as one of Kento’s early successes. The mention of Lily serves to ground the story in its own history while emphasizing how much Kento’s business and personal life have evolved since his arrival in this world.
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T/L:
Notes:
• Lily – the sl*ve and primary experiment subject for the magic shop, ‘Harvest.’ She has striking pink hair, Blue eyes, medium breasts, which the Protagonist associates with being ‘wanton’. She has a working knowledge of magic, which she kept hidden from the slave trader.
• Kento – The owner of the magic tool shop ‘Harvest,’ which discretely sells adult goods. He’s a former overworked, ordinary salaryman from modern Japan who was suddenly transported (isekai’d) to this fantasy world. He has dark hair and an unremarkable appearance, typically wearing a plain, slightly suspicious-looking shop owner’s clothes looks like Kazuma Satou from certain series. He has a minimal amount of magic power, enough to craft his specialty items.
• Soi – An old professor from Ajire seminary, the first to raise a question. Looks like wizardly.
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Edited by Kanaa-senpai.
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