The Female Hunter Training App

“…?”

It was 6:30 in the morning.

I had just discovered a strange new app sitting on my phone sometime during the night.

I was changing clothes and about to head out for some light morning exercise before my 9 a.m. lecture when I noticed the unfamiliar icon and tilted my head.

“Did I ever download something like this? Maybe it got mixed in while I was grabbing eroge last night?”

I propped Grandfather’s greatsword against the shoe cabinet for a moment and cast my mind back over the previous day.

—You useless piece of trash! You got dust all over me! No wonder you’re stuck at D-class even as a second-year—you can’t even play meat shield properly!

—You’re the one who blasted the wall and sent concrete flying, and now it’s my fault?! Honestly, even you have to admit this is pure bullshit… wait, no, you clearly don’t.

“Right. Morning was the usual thorough beating from Senior A-rang. Afternoon was the Eunma Apartment Dungeon, where I got to dance a lively tap number to whatever Kkanf’s latest psychotic frame-job was.”

Everything up to that point had been completely ordinary—the everyday life of the sole D-class hunter in Hankuk University’s prestigious Hunter Department.

“Then I dragged my exhausted body home, showered, and was about to blow off a little steam with some eroge before bed… so why does everything after that turn into fog? I was definitely on that site last night… Ah!”

It came back to me.

I had spotted an eroge with a bizarre advertising slogan that stuck in my head: Train the real female hunters around you however you like!

It looked like a brand-new release—zero views, zero downloads.

Tempting, sure, but making an eroge based on real people—especially hunters—was the kind of thing that could get you punished by the Hunter Bureau if you were careless. So I just clicked my tongue in regret and started to scroll past.

“Yeah, I was about to keep scrolling when the phone screen suddenly flared bright white. And after that…?”

What happened after that?

Strangely, the memory simply did not exist. It wasn’t the usual “if I think hard enough it’ll come back” feeling. It was as if someone had taken scissors to that stretch of film and snipped it clean out of my head.

“Yet the second I opened my eyes, there it was—an app I never installed, sitting on my phone like it owned the place…?”

Maybe I had just been so wiped out that I passed out mid-download. Still, the whole thing left a bad taste in my mouth.

“Whatever. No point poking at a possible boil. Just delete it and go work out.”

Unease and irritation from the blank space in my memory settled over me. I reached to delete the source of it all.

The very next instant—

“Huh? What the—why isn’t the delete button showing up? And now it’s launching itself?!”

Was this one of those phishing scams targeting hunters that kept showing up on the news?

I’d never dealt with anything like it, so I stood there flailing while the thing finished loading on its own.

“Ah, for fuck’s sake…”

I didn’t want to look.

But I had no choice.

I dragged my unwilling gaze over to the screen.

And the moment I did—

“Wha…?!”

Goosebumps raced across my entire body.

I had never entered a username, yet the message greeted me by name as if it already knew everything. That alone was unsettling. What truly stunned me, though, was the screen that followed.

There I was, rendered as a full 3D character model.

Barely thirty seconds had passed since the app forced itself open, yet in that brief window this unknown program had scanned my entire body into a 3D avatar and displayed every one of my stats in neat numerical form beside it.

“What the hell is this even… huh?!”

My voice came out shakier than I expected. Instantly a new message popped up over the screen.

“It’s… listening to me? More importantly—training real female hunters…?”

Some kind of AI? The moment the thought crossed my mind, another window appeared as if to confirm it.

“Debauched sex life and… growth…?”

That didn’t even make sense.

On any other day I would have snorted and dismissed it. But after everything I had just seen, the words wouldn’t come out. Instead I found myself leaning closer, hanging on the word “growth.”

Is the growth you’re talking about the kind of growth I think it is? I asked the app in my head.

And the app ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠answered.

“Training Points?”

“I can raise my stats?”

Even while half-doubting it, the promise of higher stats pulled me in. Almost in a trance I reached out and dumped five points each into Strength and Stamina.

“Nothing’s happening… Whoa?!”

Fwaaaaash—!!

A burst of light erupted from the phone screen.

Before I could even react, the radiance poured out and sank straight into my body.

At the same time a strange vitality flooded through me. I snatched up the greatsword and bolted out into the hallway.

“I still have no idea what any of this is, but… I can just check with my own body, right?”

Classic meathead logic: when in doubt, test it physically.

Heart pounding, I sprinted toward the empty lot near my studio apartment—and something even more startling happened.

“Gah—?!”

A translucent message window appeared right in front of my eyes, exactly like the ones on the phone, as if I were wearing a VR headset.

I yanked my phone out in a panic. The same text floated on the screen. I pressed a hand to my racing heart.

“This thing really does have every feature under the sun. Couldn’t it have explained this beforehand? Lucky I was alone—anyone else would have lost their mind.”

“Jesus… How many times am I going to jump out of my skin before breakfast? Anyway—rank table?”

“Uh… later. I’ve got something to do right now.”

Conveniently, I had already reached the empty lot. I put the rank table aside and gripped the greatsword with both hands.

Just like my awakening ability, it was a family heirloom of the Goo clan—a massive blade weighing a ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠full 200 kg.

“Hmm… does it feel lighter? Hard to tell when you’re already used to the weight. Better just swing the damn thing!!”

Whoooosh—!!

I launched straight into a spinning slash.

Thanks to the boosted Strength and Stamina, my body spun faster than usual, and the greatsword followed the motion, sending a heavy blade-wind tearing through the air around me.

“Still solid in my grip. In that case…!!”

I didn’t stop. I kept spinning, round and round.

Ordinarily the sword’s weight and centrifugal force would have thrown me off balance or ripped it from my hands long before now. I had never even dared attempt this many consecutive rotations. Today was different.

“I’m not being dragged by the blade. It’s not flying out of my hands. So now…!!”

Brake!

I slammed a foot down hard, forcing the whirling body to a sudden stop.

“Nnngh…?!”

Skrreeeech—

Dirt scraped underfoot. The abrupt halt demanded a brutal price from my muscles.

But I did not fall.

I staggered, yes—but I neither toppled and rolled across the ground nor lost the sword and carved a tree in half the way I always used to.

“Nice… Then…!!”

Clockwise spin, hard stop, reverse to counter-clockwise, stop again, reverse once more. Direction changed; the process stayed the same. I repeated the stupid, stubborn drill dozens of times before I finally let myself believe it.

The stats really had gone up.

I had sensed it from the first spin, but I kept telling myself it might be placebo, luck, or pure imagination. Excitement had simply carried me away.

Wiping the sweat running down my forehead, I muttered,

“I’m nowhere near Grandfather’s level—he could wield this thing like a pair of chopsticks—but control is definitely easier, and the feel in my hands is… good.”

If I kept growing like this, maybe one day I really would reach that realm.

“Wait—then what the hell am I still doing out here?!”

Mid-breath, the realization hit. I spun on my heel and sprinted back toward the studio.

Celebrating a tiny power-up was not the priority. Studying this app was.

“The endless humiliation and oppression I’ve eaten since last year ends now!”

All I had done was awaken the power of a Dragon Slayer in a world where dragons were already extinct—the ultimate cosmic joke. That, and being the only D-class in the entire department, had been enough for seniors, juniors, and classmates alike to look at me like garbage.

If I could just seize this possibility that had fallen into my lap—whether by chance or something else—I could change those looks, even if full-blown revenge was too much to ask.

“And if researching this app turns me into a real hunter, I can knock up as many pretty ladies as I want! I can finally grant Grandfather’s last request for a whole army of grandchildren!”

Of course the pure, filthy desire underneath was far stronger than any filial piety, but I dressed it up nicely as I ran, soles practically smoking, all the way back to the studio.

Once home I showered off the sweat first, then immediately opened the game site where I had found the app the night before.

I wanted to check whether anyone else had received this eroge-mimicking program.

“Weird… it was right around here…”

Just like the missing stretch of my memory, the listing had vanished as if it had never existed.

Maybe the ad copy had been too extreme and someone reported it. After experiencing the app’s abilities firsthand, though, the idea that ordinary takedown procedures could erase it felt vanishingly unlikely.

“Well… whatever the reason, if it quietly disappeared on its own, that works in my favor. More importantly…”

I opened the app and examined the menus I had skipped earlier.

Gacha / Heroines / Skills / Training / Inventory

Five tabs sat along the bottom of the screen like any ordinary mobile game.

Without hesitation I tapped the leftmost one—Gacha.

“Looks like draws cost Training Points—one point for a single pull, ten for a ten-pull, that kind of setup.”

Curious as I was, zero points made the menu useless for now.

“Heroines… probably means the female hunters. Completely ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠empty. Same idea as a character roster in a collectible gacha game?”

Effectively empty as well. I moved on without regret and tapped Skills.

“What the—? This one hands out three skills right at the start? More importantly, where the hell are they going?!”

Unlike the previous menus, this one apparently intended to roll out the red carpet. The moment the acquisition message appeared, light flared from the phone exactly as it had when I raised my stats—then shot into my cock, my hands, and my eyes, sinking in as if absorbed.

I hurriedly tugged the waistband of my boxers and confirmed everything was still intact, then exhaled in relief.

“I’ll check the skill descriptions later. Next is Training… yeah, this is the real main event. Inventory I can more or less guess.”

I opened the Training menu.

The true flower of the Female Hunter Training App.

Heart tight with anticipation, I stared at the screen. An empty slot appeared, followed by a message window.

I had expected some kind of catalog packed with photos and names. This method was far more interesting. A thoroughly filthy smile spread across my face as I murmured,

“Who should I pick… the Kkanf who’s always treated me like a pack mule and meat shield? No…”

For a second the image of that particular elf’s massive tits floated up, but I shook my head.

Rough and vicious as she was, when it came to sheer breast size there was someone in our department who outclassed even that foul-tempered Kkanf by a full rank.

“Cheon A-rang.”

One year my senior.

Like me, she fought with a greatsword. True to the “rang” in her name, she was as wild and hot-tempered as a wolf, forever picking fights with anyone who crossed her path—essentially a natural disaster walking the halls of our department.

I myself had been dragged into forced spars more than once simply for catching her eye, and every time that enormous blade whirled, those watermelon-sized tits bouncing with the motion had burned themselves permanently into my memory.

Half-Korean, half-Brazilian, healthy bronze skin marked with scars large and small… all of it was background noise next to those outrageous breasts and her fierce, striking face.