.

Ryu Sein, a martial arts practitioner, was so engrossed in cultivation that she was constantly monitoring her condition, even unconsciously.

Not all who practiced martial arts had this ability to self-assess their health. But her expertise in the Sein Swordsmanship, an original form of martial arts, granted her this special capability.

What life-threatening issue had arisen?

How could she solve the problem?

Ryu Sein’s abilities went to work, desperately seeking an exit in an endless maze, flipping through her blood pathways.

But…

No matter how hard she looked, she couldn’t find an exit.

The driving force behind her abilities was, after all, magical power.

Without magical power, even the strongest martial arts were useless.

‘……’

As her body, drenched in cold sweat due to its helplessness, was in this state…

Something entered her mouth.

A substance, both soft yet solid and filled with positive energy, swiftly passed through Ryu Sein’s mouth and throat, tormenting her. Though her face was repeatedly hit by some wet beads, she could do nothing about it. She didn’t even have the strength to fend off external substances, let alone save her dying body.

Little did she know, these were life-saving measures.

Soon after, the solid and hot foreign substance that had completely occupied Ryu Sein’s throat began to emit a tremendous amount of positive energy.

It not only acted synergistically with Ryu Sein’s inherently strong negative energy but also supplied an excessive amount of magical power, recovering about 80% of her depleted state.

Thanks to that, her fading consciousness returned.

‘What was that, just now…?’

Consciousness had returned, but sensation in the body had not.

It was as if she were dreaming.

In a dazed state of mind, Ryu Sein pondered over what had just happened to her.

‘A chunk of positive energy drove into my throat, roughed around, fed me some kind of elixir, and then vanished…’

While Ryu Sein was a knowledgeable adult in South Korea when it came to matters of sexuality, her thoughts hadn’t reached that far.

Firstly, being a virgin, Ryu Sein had only theoretical knowledge about sexual matters.

Secondly, the object that entered her throat was far larger than any male anatomy she had faintly imagined, so she couldn’t have thought it was that.

This led Ryu Sein to a different line of thought.

‘Ah! It must be a spirit creature! Dad must’ve found it somewhere to save me! A spirit creature rich in positive energy!’

Ryu Sein had never actually seen a spirit creature.

Nor had she ever heard of their existence anywhere; she just inflated her imagination based on what had happened to her.

‘Did the spirit creature shoot that elixir at me? A creature that produces an elixir rich in positive energy after moving rapidly in and out of my throat? Hmm… considering I live in a world where martial arts can be cultivated to even use sword energies, it wouldn’t be strange if such spirit creatures actually exist.’

For Ryu Sein, who was born with an affinity for negative energy, the elixir filled with positive energy was invaluable in balancing the internal yin-yang harmony.

If she had cultivated martial arts specializing in negative energy, an elixir filled with weak energy could have been poisonous, but her swordsmanship was not of that sort.

At that point, Ryu Sein felt a bit regretful.

The elixir had an unbelievable amount of magical power. Had she taken it while not in a depleted state, she would have made substantial progress in her martial arts.

She might have even broken through her current limitations and stepped into a new realm.

Shaking off these thoughts, Ryu Sein refocused her mind.

‘No, no. I should be grateful just to be alive. Realms are to be built upon one’s own strength. I shouldn’t get carried away with futile imaginations and wrongful desires, Sein.’

Ryu Sein, regaining her composure and even giving herself advice, found her unintended hope turn into an actual hopeful result.

The spirit creature that had earlier funneled a jarful of elixir into her stomach made another entrance into her mouth!

“Yes!”

With a cheer, Ryu Sein relaxed her body obediently.

She didn’t want to scare off the spirit creature with her reaction.

As she waited patiently, she felt her mouth fill up, followed by an overwhelming surge of Yang energy that seemed to possess her throat from the spirit creature.

Ryu Sein felt her previously anxious mind stabilize in that throbbing, immense warmth.

Earlier, she had been in a severe state of Qi Deviation, unable to properly feel anything.

But now that she was conscious, what she felt was…

‘…Comfortable.’

Something the size of a club invaded deep into her throat.

Normally, this would be uncomfortable enough to make one retch, but it felt surprisingly comforting.

It was as if she had stumbled upon a new clearing in a forest and found that the giant tree stump there felt as comfortable as a bed she had used all her life. She lay down for a moment and almost fell asleep.

Unbeknownst to her, this comfort arose from the harmonious meeting of compatible Yin and Yang energies.

“I want to keep feeling like this.”

Thanks to that, Ryu Sein was able to graciously receive the spirit creature, even while conscious.

But surprisingly, the creature that had previously released the spirit medicine only after going back and forth in her throat started immediately ejecting it this time.

Vrooom, vrooooom!

Ryu Sein began to feel greedy amidst the deep satisfaction she derived from the hot spirit medicine filling her stomach.

“Since the second time was possible, wouldn’t a third time be possible too?”

The more spirit medicine, the better.

Especially for her, with strong Yin energy but relatively low mana, this spirit medicine was nothing short of a cheat code.

Who wouldn’t want to use a cheat code if they found one in real life?

“The first time, the spirit creature quickly moved back and forth in my throat before suddenly releasing the spirit medicine. What if I grab it myself and swipe it quickly through my throat this time?”

During the ongoing ten seconds, a storm of thoughts passed through Ryu Sein’s mind.

“… It’s worth a try.”

Having made her decision, Ryu Sein took action immediately.

Her first move was to suck the spirit creature into her mouth powerfully, preventing it from escaping.

Zzzzzzzzip—!

It was her motto.

Think deeply and act quickly.

.

“Ah—! What, what’s going on!?”

I reflexively grabbed Ryu Sein’s throat.

But she didn’t stop.

Like a possessed person, she sucked vigorously on me, eventually taking me in right down to the root.

What’s happening? Why is she doing this…?

While I was dumbfounded, I thought I should check the situation.

“Ry, Ryu Sein… Are you conscious?”

It was an absurd question to ask when I was lodged so deeply in her mouth, but I felt unjustly treated.

Of course, I was the one who had put it in, but Ryu Sein was the one clinging to me as if she were some sort of parasitic organism that had attached itself to me.

Moreover, everything I did was a necessary action for life-saving measures!

… Even while trying to maintain this self-assured attitude, I was praying desperately inside.

‘Please let her not be conscious, let her sleep a little longer…!’

I didn’t want to have to explain in detail to a woman I had known for less than 24 hours why I was in her mouth in the first place.

Had my prayers reached the heavens?

Ryu Sein did not suddenly spit me out and get up to interrogate me.

No, quite the opposite.

She now started to suck on me in earnest.

Zzurup, chuup, zzurup, chup—!

…and very passionately at that.

I didn’t know what was happening, but from how she was eagerly sucking, it was as if she was eating a popsicle in her dreamland.

Otherwise, she wouldn’t suck so forcefully, as if trying to extract something.

The intensity was such that if the owner of the genitalia were not an enhanced person but a regular individual, this would feel like torture, not fellatio.

“Ah…!”

Anyway, it felt good.

Though she wasn’t skilled at fellatio, a mysterious pleasure surged up my spine.

Suppressing the urge to grab Ryu Sein’s jaw and use it like a sex toy, I observed her.

I was curious as to why she was acting this way all of a sudden.

Astonishingly, Ryu Sein began to move her hand and started feeling around the upper part of my body.

Her hands, which had been groping around my buttocks and hips, finally settled there as if she found them satisfying.

In other words, while lying down, Ryu Sein tilted her head back to suck on me, and her hands were now gripping my buttocks.

Her palms, which felt callused as if she had long practiced with a sword, suddenly gripped my buttocks as if they were a sword handle.

“Uh…!?”

I twitched, feeling both a bit of pain and pleasure from her merciless grip.

Did she take that reaction as some sort of signal?

Ryu Sein started to generate a piston motion, shaking my buttocks.

While a regular fellatio involved putting the male genitalia in the mouth and moving one’s head to create pleasure, Ryu Sein was lying still and moving the man instead!

Such a shift in thinking…!

Chup-chup-chup-chup-

An automatic fellatio where the woman held and moved my buttocks.

I wasn’t sure how this all came to be, but I was rather comfortable just watching Ryu Sein’s slender neck and the fascinating sight of my member going in and out of her mouth.

After sustained stimulation, my arousal rose quickly again, and just as I was reaching the point of no return, I felt Ryu Sein’s fellatio was a bit lacking.

Her back-and-forth speed wasn’t particularly fast.

So, I made a bold decision.

With my eyes tightly shut, I decided to use Ryu Sein’s throat as a sex toy one more time.

After all, wasn’t it Ryu Sein who voluntarily started giving fellatio in the first place?

There was no reason for me to hesitate any longer.

Seizing the moment, I grabbed Ryu Sein’s delicate head with both hands.

Zzurup, chuup…!

I felt Ryu Sein’s tongue, which had been eagerly sucking me, hesitate for a moment.

First, I pushed my member deep down to the root to clear a path…

Chirr chirr chirr-

I thrust my hips roughly, just like I would with a sex toy.

Chup-chup-chup-chup-chup-chup-

“Ahhh…”

I let out a long sigh without even realizing it, feeling utterly pleasant and comfortable.

It was a consistent experience, akin to a mouth that I had used for decades as a sort of evolving, attachment-based sex toy.

The mouth felt as familiar as my hometown, for reasons I couldn’t quite put my finger on.

As I started thrusting quickly, treating her throat like a sex toy, Ryu Sein also began to change.

Her neck, collarbone, and exposed upper chest flushed red beneath her martial arts uniform.

At the same time, she started wiggling her body, and the grip of both hands on my buttocks loosened as if she didn’t know what to do next.

To me, this was a sign of her reaching orgasm.

This was what Ryu Sein felt while her throat was being used…!

Anyway, what was most important to me right now was to ejaculate satisfactorily.

Chup-chup-chup-chup-chup-chup-♡

Thanks to the relentless and quick deep-throat fellatio, my sensation of climax surged quickly, allowing me to soon shoot my semen.

Vwoor-vwoor-vwoor-!

I began to climax, pressing my pelvis tightly against Ryu Sein’s lips.

Feeling my member cover her nose, I thought, ‘Is this okay? I’m not totally out of it,’ but had no intention of pulling out, consumed by the desire to finish pleasurably.

The ejaculation continued for approximately 10 seconds.

Pwoosh-♡ Pwoosh-pwoosh-♡

I noticed a warm liquid soaking near the crotch area of Ryu Sein’s black martial arts uniform.

It was unmistakably her love juices.

That was not all.

Her lower half, along with her hips, started trembling.

It looked like she was also reaching her climax.

This wasn’t a typical scenario, but it didn’t feel strange given that I had seen Serena and Ciel climax just from giving me fellatio multiple times.

More impressively, while I ejaculated so grandly, Ryu Sein diligently sucked and swallowed the semen in her mouth.

Did she realize that this semen might be the magic essence that could save her?

If so, then all of her actions made some sort of sense.

Survival instinct, perhaps.

But then…

“Ma, Master!”

“The magic energy…!”

Serena and Ciel, who had approached from either side to watch me use Ryu Sein’s throat as a sex toy, suddenly shouted out.

I could feel why they were so surprised.

“…”

I felt a tremendous whirlpool of magical energy coming from inside Ryu Sein, who was currently holding onto my member with her mouth.

She was experiencing some kind of enormous breakthrough.