I... I should close the door...
Jin Seyoung couldn't tear her eyes away from Sung Yujin's body.
Yujin's mastery of the Yeongcheon Style's fundamentals was flawless. Moreover, she could now see the subtle movements of muscles usually hidden beneath clothing.
Ah... So that's how the muscles move during that technique.
She was learning something new. Having never practiced swordsmanship nude before, the experience felt surprisingly refreshing.
Could Yujin's sudden improvement be due to practicing naked?
The thought lingered only briefly.
Jin Seyoung soon found herself mindlessly ogling Sung Yujin's body. Her face was flushed crimson, and her quiet breaths came hot and heavy.
For the past week, Jin Seyoung had been consumed by sexual urges. Normally, she would channel her libido through exercise, masturbating only once every two weeks, if at all. But this past week, she had masturbated every night, yet her desires remained as intense as ever.
...It's because of Yujin...
No matter how she tried to rationalize it, Sung Yujin was the only explanation for her heightened libido. Sung Yujin was the only man she had spoken to recently.
When a man and a woman in their prime spend at least three hours together every day, Jin Seyoung couldn't help but become instinctively aware of Sung Yujin, no matter how much she tried to suppress the thought.
Moreover, just as Sung Yujin was aroused by her scent of sweat, Jin Seyoung found herself increasingly aroused by his own scent of sweat. Lately, Sung Yujin's sweat had begun to smell overwhelmingly fragrant, to the point where it was becoming a problem.
"...!"
Jin Seyoung's eyes widened as if they might tear.
Ahng! Hng! Hah! O-Oppa, a little slower... Ahhhng!
Sung Yujin, seemingly wanting to relax, sat on the floor, pulled out her smartphone, and started watching porn while stroking her own clit with her left hand. The smartphone blared with the excited moans of a woman.
"Hoo... Huk... Hah..."
Sung Yujin began rubbing her erect clit up and down, her breathing growing ragged.
I-I shouldn't be watching this...
Jin Seyoung couldn't tear her eyes away.
She had only heard about male masturbation before; this was the first time she had ever witnessed it firsthand. She never imagined someone could move their hand so quickly. After about ten minutes, Sung Yujin's body shuddered violently, her clit twitching as it released a milky-white fluid.
Drip. Drip.
A torrent of semen, far surpassing anything her ex-boyfriend had ever produced, shot forcefully into the air and splattered onto the floor. It must have traveled at least a meter.
"Haaaaah..."
Jin Seyoung watched Sung Yujin exhale deeply, still flushed with the afterglow of pleasure. Startled, she carefully closed the door and fled from his private training room as if escaping.
Oh, how... How am I supposed to look at Yujin from now on...?
Jin Seyoung desperately tried to ignore the throbbing ache in her groin.
***
10 PM.
Alone in the Shadow Heaven Sword Hall, she entered her private training room, locked the door, and stood before the mirror.
Even to her own eyes, her figure was exceptional. Her C-cup breasts were full yet perfectly shaped, her waist utterly free of excess fat. Her hips were firm and lifted, showing no signs of sagging.
Most Hunters were in good physical condition, but Jin Seyoung's figure was exceptionally beautiful.
This is an experiment. I'm testing the method Yujin used.
The fundamentals of the Yeongcheon Style.
She had transitioned to practical techniques early in her training, leaving her foundational skills somewhat lacking. Yet, despite dedicated practice, her fundamentals showed little improvement. Perhaps Sung Yujin's method could help her elevate her basic skills.
She began undressing.
First, she removed her pink tank top, revealing her firm breasts. She even peeled off the white nipple covers.
"Mmm~"
As the nipple covers came off, her already erect nipples felt a sense of liberation. She then pulled off her leggings and panties in one swift motion. Her panties were already damp.
The pubic hairs, flattened by her panties and leggings, slowly began to rise. There weren't many, as she trimmed them regularly along her bikini line.
"It's wet and uncomfortable," she muttered, her brow furrowing slightly at the dampness between her legs. She spread her thighs.
Her tightly clenched vulva was revealed. Seeing her labia glistening with arousal through the mirror, she parted her lips slightly.
This was the first time she'd seen herself so clearly. She never imagined her vulva could look so wanton.
Her face flushed crimson, Jin Seyoung wiped away the moisture with a tissue and picked up her wooden sword. She assumed the Yeongcheon Style stance and continued her practice.
"Haa... ha... haa..."
Her breathing grew ragged with each movement, not from exertion, but from something else entirely.
The sight of her own lewd reflection in the mirror kept catching her eye. The liberating sensation coursing through her body, combined with a faint sense of transgression against the Yeongcheon Style she had diligently practiced, ignited a sexual thrill within her.
With each movement, her breasts swayed. Her pale pink nipples were painfully erect, hard as stones.
Despite having wiped herself clean with a tissue earlier, her vulva was already slick and wet again.
I-I did gain something from this. I got to see the muscles I couldn't properly examine while they were hidden under my clothes. B-but...
The image of Sung Yujin masturbating earlier refused to leave her mind.
She finally collapsed onto the floor, her hand reaching down to her vulva.
"Haaah..."
The wet, squelching sounds filled the private training room.
I returned to my dorm room, chuckling to myself.
I can't believe Jin Seyoung was watching me practice naked. I even ended up masturbating in a fit of anger.
I never imagined she would be spying on me.
Instead of acknowledging her presence, I pretended not to notice and deliberately masturbated for her benefit.
What kind of expression will she have when she sees me tomorrow? She'll probably act like nothing happened, right?
That would be fine with me.
The important thing was that Jin Seyoung had watched me masturbate to the end. That meant she was sexually interested in me.
I feel like I could fuck her if I just had the right opportunity. Should I just pretend I don't know and pounce on her?
But that would be risky.
Jin Seyoung is a B-Rank Hunter. If she used her full strength, she could easily kill someone like me. I wasn't confident I could handle the consequences.
I'll just have to see how she reacts tomorrow. Heh heh.
"Welcome. You're here a bit early today, aren't you?"
"Ah, yeah. I had some extra time."
Jin Seyoung's expression was as usual when she greeted me. I had expected this, but I couldn't help feeling a slight disappointment.
Well, she has no choice but to pretend she doesn't know.
Then I noticed Jin Seyoung deliberately avoiding my gaze. Whenever our eyes accidentally met, she would quickly look away. I chuckled softly at her reaction.
"Yujin-ah, your fundamentals in the Yeongcheon Style are already solid. This time, we'll be learning practical techniques."
"Practical techniques?"
"Practical techniques are the true essence of the Yeongcheon Style. They're applications of the fundamentals, adapted for easier use in real combat. In fact, you could say the fundamentals are learned specifically for these practical techniques."
"Wow. I thought the fundamentals were already impressive, but there are separate practical techniques too? I'm really looking forward to this."
It was a lie.
I already knew the Yeongcheon Style's combat techniques.
As my Attribute Yeongcheon Style reached Level 3, I automatically gained knowledge of the Yeongcheon Style's combat techniques. Since it would be strange to know techniques I'd never learned, I simply kept it hidden.
Afterward, I flawlessly executed every combat technique she taught me, without a single unnecessary movement.
"...As expected of Yujin. You've already mastered the combat techniques... At this level, you could use them in actual combat."
"Heh heh."
I forced an awkward laugh, pretending to be flustered by her praise.
In reality, I was ecstatic.
I wished she would praise me even more, now that she thought I was a genius.
And maybe even spread her legs for me. Hahahaha!
I struggled to suppress my elation, feeling like I could fly. For once, I was in a position of power. A little flexing wouldn't hurt, right?
"Oh, by the way, I got a scout offer today."
"A scout offer?!"
"Yeah. I bragged about the Yeongcheon Style to my friend yesterday, and apparently he told his Hunter Academy about it. It's not a formal scout, just an invitation to visit.
They said they'd offer various support if my skills are good. My friend mentioned it's a Hunter Academy affiliated with a pretty successful guild, so the support is supposed to be top-notch."
It was all a lie.
But Jin Seyoung, unaware of my deception, suddenly stiffened, her expression turning serious.
"Are you thinking of going there?"
"No way. How could I abandon the Yeongcheon Style? Still, the offer of practical training is tempting."
"I see."
Jin Seyoung seemed to be deep in thought. No wonder she'd be anxious she wouldn't want to lose me.
Confirming her distraction, I strode forward and reached out.
"Sis, you've got some dust on your left ear."
Activating heightened sensitivity. Vitality will be continuously drained.
I rubbed her ear between my thumb and forefinger, then withdrew my hand.
"Hngh..."
"Huh? What's wrong?"
"Ah, it's nothing."
"Really?"
I spoke casually, but inwardly I chuckled. Directly stimulating her erogenous zones proved far more effective than subtle physical contact.
If I keep touching her erogenous zones for about two minutes, I can probably make her feel a small climax.
I already knew this from testing it in the game world. Of course, the effectiveness varied depending on the specific erogenous zone. The more intimate the area, the greater the effect.
Why bother with ambiguous erogenous zones when touching her pussy would be far more effective?
Sensitivity to erogenous zones varies from person to person. For women with low sensitivity in these areas, simply touching their vulva proved more effective.
"Sis, I'm going to train in the private training room."
"P-private training room?!"
Flustered, she even mispronounced her words. I chuckled, nodded, and entered the private training room. Just like yesterday, I didn't lock the door and immediately stripped.
Before long, I sensed eyes on me. Moving around as if training, I caught Jin Seyoung peeking through the crack in the door. I practiced for a while before masturbating, just like the day before.
I tossed the tissue I used to wipe myself into the corner trash can. Then, I carefully observed the contents of the trash can.
You never know. Sis might touch it.
I chuckled inwardly, though I doubted she'd go that far.
The next day, my assumptions shattered. The position of the tissue in the trash can had changed from the previous day, and there were additional tissues I hadn't used.
...This. It might actually be possible soon.
I swallowed hard. Today, I had ejaculated twice. The volume of semen was greater than yesterday, making the tissues soggy.
The following day:
This time, the semen-stained tissues from yesterday have completely disappeared.
There are only four people working at Shadow Heaven Sword Hall, including Jin Seyoung. Two are cleaners who work morning and afternoon shifts, and the other is a female employee who manages the front desk.
Even the cleaners aren't allowed to enter private training rooms without permission. After all, they're called "private" for a reason.
Therefore, there's only one suspect.
Should I pounce? Should I pounce? If I just set the mood a little, I could pounce. Or should I wait and see how things develop further?
I decided to observe the situation a little longer.
"Yujin-ah, I've been thinking, and the Shadow Heaven Sword Hall has decided to support you," Jin Seyoung said to me one day as I was resting after exercising, drinking water.
"Support?"
"Yes. The conditions are that you formally join the Yeongcheon Style and don't affiliate with any other Hunter Academy or guild."
"Wait a minute. I can't join any other guilds? That's a bit much..."
"Oh? Sorry, I misspoke. You just need to consult with me before joining a guild. Of course, I won't unconditionally reject guild affiliations. I want you to join a proper guild and contribute to the Yeongcheon Style. Or, you could join the The Jaun Guild, where I belong."
"Jaun? You're part of the The Jaun Guild?!"
I was completely shocked.
The Jaun Guild is a major guild ranked sixth among Korea's top ten.
The top ten guilds are like major corporations in the world of ordinary people. A Hunter who joins one of these guilds is considered a successful Hunter.
"It's practically like getting in through Dad's connections. Interested?"
"...No. Not right now."
I was still only an F-Rank Hunter. Even with connections, there was no way I could join the Jaun Guild. Besides, I wasn't confident I could survive there.
I'd heard they rarely accept Hunters below D-Rank, and even if they did, they put them through brutal training.
"Good choice. Being one of the top ten guilds isn't always a good thing."
She crossed her arms and nodded. I glanced at her prominent chest before asking,
"Noona, you said you'd support me, right? How exactly will you do that?"