Succubus System (1)

"Min-seok."
"Yes."
I straightened up and replied right away to that voice, which sounded nitpicky even just from hearing it. She was dressed in a crisp office suit that didn't fit the logistics warehouse office at all, with a bob haircut reaching her shoulders. Her huge breasts couldn't be hidden even by the tight suit, and she had a ripe, stunning beauty. If you ran into her on the street, all ten out of ten people would do a double-take—but to me, she was just an exhausting, annoying pain in the ass.
"There's a lot of trash on the warehouse floor. Could you sweep it up?"
"Right away."
I gave a flat response to the routine targeting and headed out of the break room. Sympathetic glances came my way from the others around.
The day I was discharged from the military. I took only the pittance I'd scrimped and saved from my meager pay, stuffing it all into savings, and left home. Escaping that house where they screamed and fought every single day since I was a kid had been a long-cherished dream from my student days.
I got out without any incidents and headed to Seoul, far from home. Since I'd decided to live alone anyway, I didn't want some sleazy neighborhood—I wanted somewhere clean and upscale. Seoul housing is expensive, though; with what I'd saved in the army, I couldn't even cover a studio deposit. So I ended up in a goshiwon for 250,000 won a month.
At least housing was sorted. Next up: a job.
Twenty-one years old, fresh out of the army with just a high school diploma—no experience, no certifications. Landing a proper job was a pipe dream. I sent out resumes everywhere, barely any listings, and went to interviews. Then a call came from a nearby major department store.
When they asked how long I could work, I said as long as they didn't fire me, I'd stick around. They hired me on the spot without even an interview. Pay was above minimum wage, hours reasonable, close by. As a full-timer at a big corporation, bonuses and holidays were solid—way better than most small companies.
Of course, it wasn't an office job. I was loading and unloading at the logistics warehouse. But compared to delivery gigs or day-labor at distribution centers, the conditions were incomparable.
So why'd they pick me? Even for manual labor, with perks like that, applicants would be lining up. If you're hiring, you'd go for someone with at least a line of experience, right?
I figured it out soon enough. Unusually, the team leader for my section was a woman, and she had a hobby of picking one guy and piling on every miscellaneous task to torment him nonstop. Seniors who'd been there longer said plenty had quit after getting bullied with all sorts of bullshit from her.
This time, it was my turn to be her target.
Damn, it's cold.
Mid-November, and the chill was ramping up by the day. The break room had heaters, and loading/unloading made you sweat enough to bear it. But out here sweeping with the cold just starting to seep into my bones? Freezing, obviously.
I had plenty of gripes I wanted to vent, but I swallowed them all. Home had been full of constant fights over money, so if the pay was good, I could stomach this level of bullshit. With my specs, unless I went shrimping, the odds of landing something better were near zero.
"Report back when you're done cleaning. I'll check if you did it right."
"Got it."
Next shipment comes in, and it'll be trashed with boxes, tape scraps, plastic bits again. Normally, we all pitch in once at shift end. Making one guy do it—during break time, no less—screamed pure harassment.
I wasn't emotionless about it. The natural irritation, the injustice, the hollow urge to say fuck it all... and...
I'm jealous.
Jealousy of her blatant upper-hand position.
Team Leader of Logistics Section 2: Seo-yeon Yoo. She could act like a total bitch without repercussions for an obvious reason. Rumor was, she was the daughter of some high-up in the department store chain's execs—director or whatever, big shareholder. A parachute hire straight to team leader, free to torment underlings without a care.
Why the director's daughter was stuck bullying warehouse workers? No idea. Consensus among staff: her bitchy personality kept her out of the actual store.
Even as team leader overseeing things, strutting around in her pristine office suit wasting time while everyone else sweated—that fueled the rumors.
Lost in a stream of random thoughts, I finished cleaning. Visible trash gone, dust mostly handled—good enough.
I stood at the corner of the warehouse by the women's break room door and knocked.
"Cleaning's done."
Women's lounge my ass—with only Seo-yeon Yoo as the lone woman in logistics, it was basically her private office.
She came out soon after. She winced slightly at the cold outside air, shivered, and scanned around sharply.
"Looks passable. Move the piled stuff to the back storage and take a break."
By the time I did that, new shipments would arrive, and handling them meant quitting time. Basically, no break.
"Got it."
"...Good work."
I gave no real reaction, just answered flatly, so she replied just as curtly and vanished back inside.
Quitting time soon, at least. She wouldn't nitpick slacking unless seriously pissed, so I could coast through like a break.
"Everyone, good work today."
Shift end, final tidy-up done—I changed and headed out. No friends nearby, no hobbies, so like always, I walked back to the goshiwon.
Down to the lobby in the elevator, my eyes met the indifferent gaze from the counter beyond.

Eye candy, at least.
The woman at the management counter was a real beauty. Always in a black tracksuit, hair messily tied back like she didn't care about looks—but raw material doesn't change. I'd only seen her blank study face, but smiling? She'd light up even more.
Fellow goshiwon resident, handles management. Name? Unknown. That was the extent of what I knew.
I nodded casually in greeting; she nodded back, then returned to her studies without a word.
Girlfriend, huh.
Seeing her sometimes sparked thoughts of dating. Pretty girlfriend—who wouldn't want that?
I wasn't immune to the idea, but a high-school grad with no decent home or stable job? No girl's signing up.
Anyway, I was totally against marriage, so dating was half-given-up territory too.
Back to my room down the hall, I stripped off outer layers and flopped onto the bed.
"Maybe get a gym membership."
Something I'd been mulling lately. Work left me beat, but not too wiped for exercise. Wanted to maintain the build I'd honed in the army. Hobbies? Just YouTube or games.
Computer or phone? I pulled out my phone.
"Might as well look into it."
I didn't hate working out—body was my only asset. Gym seemed fine.
After days of just thinking, time to actually search.
"Huh?"
Phone screen lit up, and there was an unfamiliar app in the corner.
"Succubus System?"
No way I'd forget a name like that. Definitely not in my memory.
"Hack?"
Thinking that, I still tapped it open.
Welcome to the Succubus System.
Synchronization with user complete.
The app's layout was simple.
Nothing else.
I tapped the Vital Energy part, and an explanation popped up.
Vital Energy can be acquired through pleasure from sexual contact with the opposite sex. App functions strengthen based on possessed Vital Energy amount.
"...What the hell."
It took a second to sink in. In short: fuck a woman, get Vital Energy.
Succubus. I knew the basics—demon that sucks men's essence.
Like I was possessed, I tapped Target Search next.
Searching for targets...
Search complete.
Took about 10 seconds. Loading vanished, and profiles scrolled up—photos and names only. All women.
Mostly folks I'd seen coming and going from the goshiwon. Same floor, floors below residents. Staff from the building's restaurant, convenience store, cafe.
One stood out: the lobby manager I saw daily.

Yep, pretty. Pale skin, straight nose, slightly sharp eyes blending with her usual blankness for a weird allure.
I tapped the photo to zoom.
Select target? Yes/No
Select for what? Curiosity piqued now—I hit Yes with anticipation.
Currently available function: Hypnosis.
Adjust target's common sense and emotions.
Vital Energy cost increases based on target's dissonance and resistance to altered common sense.
"Hypnosis?"
The random word sparked every guy's fantasy. Invisible man, hypnosis—what if?
Enter hypnosis content.
What to input? Hit me how dumb humans are—head says no, but what if? Fingers flew.
She loves resident of room 722, Choi Min-seok.
Simple. Laughed at how silly it sounded, but hit confirm.
10,000,000P required to apply this hypnosis. Proceed? Yes/No
Insufficient Vital Energy. Cannot apply.
"Hmm..."
Free 50k Vital Energy, but needs 10 million? 200x the dissonance/resistance.
"Obviously."
What did Kim Min-ah know about me? As manager, maybe faces and names—but that's it. Suddenly loving a face/name stranger? Massive gap.
"Start easy."
She craves a hamburger.
1,000P required. Proceed? Yes/No
"Way lower."
Just a random burger craving—totally normal, low cost.
"Alright..."
Her arousal builds, body heating up.
6,000P required. Proceed? Yes/No
Still lowish. Arousal isn't weird.
Added to the phrase: She wants sex with anyone.
1,000,000P required. Proceed? Yes/No
Spiked. Arousal fine, but anyone? Nah.
"...Fun."
Like攻略 a game—tweak settings for minimal cost clears. Got into it, testing wild stuff: urge to steal, slap 702 guy, fly. Even serious sex setups.
After tons of trials, settled on max compromise.
The Eunseong Goshiwon manager provides sexual relief services to male residents. Fee: 60,000 won per session. No full sex. Initially displeased upon hearing, but other goshiwons do it quietly too. 100% profit to manager—retention service. Doesn't love it, but needs money and handles management to save on rent, so accepts. Service: Text room number + 'service request' to manager's number; she comes to room.
Key: money and manager duties. Goshiwon life = poor; money need only 100P. No reason to relieve guys, but 'goshiwon service' excuse cuts dissonance; money eases resistance. Higher fee lowered cost; 60k hit 50k perfect.
More details tempted, but char limit. Memory/common sense flips or sex jumped costs—skipped.
50,000P required. Proceed? Yes/No
"Did it work...?"
No clue. Closed app, texted manager's number from move-in: 702 service request.
Nothing explicit—if asked, brush off; she wouldn't dwell.
Didn't need to, though.
Real? Heart pounded like mad at one text.
Soon, footsteps in hall, knock at door.
Opened the locked door: Kim Min-ah, openly displeased.
"...Come in."
"Yeah."
Her short reply cut like cold wind, but she strode in casually.
"Uh, the service..."
"Prepay, so money first."
"Uh... transfer okay?"
"Whatever."
No prepay in my setup. Unset parts fill conveniently.
"Give me the account."
I wired 60k to the account she recited.
She checked the deposit alert on her phone, sighed shortly.
"Strip."
"Ah, yeah."
Top too? Hesitated, just dropped bottoms, revealing my half-hard cock.
"Hng...!?"
Kim Min-ah's eyes trembled wide at the sight.