Chapter 15 - Childhood Friend Seo Yerin, Anger Review
-Beep! Beep!
The alarm sound that rings in the morning.
I ran the app and a review window popped right up.
-Ding!
[ Nipple Suction Rotor Review ]
[ Author: Seo Yerin ]
[ Usage Count: 3 times total ]
[ Han Junyoung you bastard! ]

[ You were out running your mouth with some other bitch, drinking, came crawling in late, and then said you were tired and just conked out to sleep? ]
[ I'll kill you. Just die! ]
"......"
Seo Yerin's review was as vivid as if she were cursing right next to me.
"...No way, right?"
Suddenly a question came to mind.
Could it be that Seo Yerin knows about this app? How could she write a review as if she's telling me to look at it?
"...No way, right?"
The app reads the user's mind. So this isn't written by Seo Yerin, it's reading Seo Yerin's feelings after masturbating yesterday...
"That's even worse."
Is Seo Yerin trying to kill me? Really?
I gulped and scrolled down.
[ Fit? ]
It was fucking awful!
Because you torment my chest all night every fucking day, just my nipples rubbing sends tingling shivers like I got electrocuted, I felt like I was going crazy all damn day!
During class my chest kept trembling so I had to keep pressing and rubbing it! Do you know how humiliating it was to be lying face down, fumbling with my own chest so no one would see!?
So I came home, my chest was swollen and throbbing, every time my clothes touched it I got goosebumps and felt like I was going crazy, so I tried doing it alone, and it didn't feel good at all! Actually, my body just got more worked up!
"S-Sorry...?"
I broke out in a cold sweat and scrolled down the page.
[ Overall Review ]
You really are a piece of trash! Unforgivable!
[ Star Rating ]
[ Fit : ☆☆☆☆☆ ]
[ Stimulation Satisfaction : ☆☆☆☆☆ ]
[ Total : ☆☆☆☆☆ ]
"......"
It was full of cursed-out profanities.
I got up and opened the toy drawer.
It wasn't neatly arranged as usual. It was tossed aside as if staging a protest.
I was so speechless at this whole situation that I didn't know what to say.
Immediately, a settlement notification window appeared.
[ This Round's Earnings ]
[ Stimulation : 5 ]
[ Review Writing Bonus : 5 ]
[ Accumulated Points: 310 (+10) ]
"........."
Only 10 points. The only item was 'Stimulation' - nothing else.
Unfortunately, it seems Seo Yerin didn't climax even once this time.
"Even though she's such a pervert, she couldn't come even once..."
Hmm. I'm sorry.
-Ding!
I was marveling and lamenting over Seo Yerin's lewd perversion when the app suddenly changed screens on its own.
The content was something I couldn't just ignore.
[ Warning : If a registered user's review satisfaction consistently fails to meet the standard, a 'User Registration Cancellation' penalty may be applied.]
[ ※ Caution : A deregistered user cannot be re-registered permanently.]
"Can't re-register...?"
A chill ran down my spine for a moment.
"...What happens if the registration is cancelled?"
Then what about the play so far? The memories of it? What about from now on?
I had to resolve this situation by today.
I hurriedly opened the shop tab and immediately paid for a few more toys.
"...Nipple clips, huh."
I could vividly imagine Seo Yerin's sneering face.
She's only tasted stimulation patches and suction rotors; if I shove something like this at her, she'll probably snort.
But I have a new skill.
[ Skill : Pleasure ]
[ Touching the user's touch brings sexual pleasure. ]
[ Additional features unlock with extra point consumption. ]
Combining that with the clip...
I'm looking forward to seeing what happens when Seo Yerin admits that she can go crazy just from a simple thing like a clamp.
And this. The skill unlocked when I broke through Lee Jieun's anal virginity.
[ Skill : Mute Mode ]
[ A certain radius becomes a silent zone. ]
[ Current radius: 10m ]
"......"
Before confirming the purchase of the skill and toys, I opened the door and checked the living room.
The house was quiet. With no sign of anyone, Yerin must have already left for school.
-Ding dong.
As soon as I touched purchase, the doorbell rang.
There was already a brown delivery box in front of the door.
"...Creepy."
Every time the app causes such an unrealistic phenomenon, it's a little frightening. That's also why I don't use the app recklessly.
"...If I could change the delivery location, I'd have it sent to a school locker."
Would that make it a little less creepy?
Curious, I fiddled with the app's delivery settings tab, but the delivery address couldn't be changed from my current off-campus housing.
A system message popped up below.
[ Change of delivery address is not possible due to insufficient accumulated points usage. ]
"......So it's telling me to use the app diligently. And to diligently torment women, too."
I quickly tore open the box and shoved the nipple clips into the drawer, and the toy for Lee Jieun into my bag.
I was about to leave the room when my phone screen lit up with a notification.
[ User reinforcement has been fully applied. ]
[ Han Junyoung ]
[ Appearance Correction : Level 1 -> Level 3 ]
[ Stamina Correction : Level 1 -> Level 3 ]
[ Virility Correction : Level 1 -> Level 3 ]
"Hmm......"
They said my appearance was corrected, so I looked in the entrance mirror, but I can't really tell what changed.
But something... something inside my body is different.
I felt like blood was circulating through my whole body.
"Good."
A feeling like I could never get tired even if I roughhoused all day.
With this, it seems like I could handle it even if a bunch of Yerins or Jieuns came at me.
I put on my bag and left the house.
# # #
"Ah... Haa..."
Lee Jieun let out a groaning sound as she opened her eyes.
The moment she shifted, a tight ache squeezed between her thighs and a hot rush of heat flooded her.
The place Junyoung's fingers had wrecked yesterday still burned and throbbed.
-Beep beep.
Her phone by the bed rings. It's her boyfriend.
Jieun stared blankly at the phone, then answered with a subdued voice.
"Yeah... Hey, oppa."
-Jieun-ah, why does your voice sound like that? Are you sick? You weren't responding well yesterday either...
Her boyfriend's worried voice over the receiver sounded especially grating today.
Normally she would have put on a little aegyo as courtesy, but today it just felt bothersome.
Even while talking to her boyfriend, Jieun's mind was filled with memories of last night.
The sensation of Junyoung scraping the wetness that had dripped from her pussy with his fingers, while she was down on all fours like a dog with her ass raised, and smearing it on her back hole.

"Ah......"
Junyoung's hard fingers, squeezing into the narrow hole, bending like a hook and scraping her inner walls.
"Nn......♡"
Without realizing it, Jieun moved her fingers between her legs.
She kicked off the rustling blanket and slipped her hand inside her thin underwear.
The pussy that had been violated by Junyoung's fingers yesterday was still heavily engorged and radiating heat.
The moment her fingers touched the smooth flesh of her pussy, a tingling shiver ran up her spine.
"Haa, haa......."
She gently rolled and crushed her sensitized clit with her fingertip, and she could feel love juices slowly seeping out.
-So anyway, today...
"Ngh......"
She couldn't hear what her boyfriend was saying.
She was just groping for pleasure with her fingers.
But the stimulation of rubbing with Jieun's own hand was hopelessly bland compared to the violent pleasure Junyoung had given her last night.
The thirst wasn't quenched.
Jieun's waist trembled on the bed. She needed stronger stimulation, something to fill the deeper places.
With her fingers coated in the love juices that had seeped from her vaginal entrance, Jieun slowly moved her hand to the back.
As she went down along her ass crack, she felt the back hole that had been forcibly pioneered yesterday.
"Ah, it's, it's dirty......♡"
Her anus was still extremely sensitive, the aftereffects of the stimulation not yet gone.
"Haaat♡"
As she slowly stroked in a circle, the wrinkles of her anus flinched on their own, contracting open and shut, as if the sensations from that time were reviving.
"Ah, hnnng......!"
The dizzying sensation from last night, like her brain was going to burn up, flashed back.
The merciless pressure of the fingers forcing their way into her back hole, the unfamiliar sensation of scraping her inner walls, and the explosive pleasure that followed.
Jieun traced the texture of her anal folds one by one, then pressed firmly on the anal entrance with her fingertip.

"Haa......♡ Nn......♡"
But she couldn't bring herself to push through alone.
When she tried to apply such an unfamiliar stimulus to herself, instinctive repulsion and fear took over.
"Wh-why... why can't I..."
Even when she tried to push it in slightly, strength went into her ass and the entrance just firmly closed.
In the end, unable to push her finger in, Jieun had no choice but to anxiously rub around her anus.
"Haa......♡"
Naturally, a man's face surfaced in her mind.
'If it were Junyoung-ssi... it would be different.'
If it were him, even if she tried to run away, he would have smacked her ass and shoved in those thick, hard fingers without any mercy.
He would have forced her open and then injected a pleasure that felt like melting.
-Jieun-ah?
"Yeah... No, it's nothing, oppa. I just woke up and my throat is hoarse..."
-Really? I'm glad. Don't overdo it during exam period. After today's over...
"Sorry, oppa. I think the group project meeting will run late today, so it'll be tough. I'll call you later."
Jieun hung up without even waiting for a reply.
To be masturbating while thinking of another man even during a call with her boyfriend.
Even she thought it was insane.
But Jieun's legs were already trembling uncontrollably.
The flesh of her pussy inside her underwear was twitching on its own, steadily leaking hot love juices.
Thanks to the pleasure she got from Junyoung's fingers yesterday, her boyfriend's very existence had been completely erased from her mind.
"I... I think I've really gone crazy... "
Just as Jieun was lowering her hand again, a messenger notification rang.
-Zzz.
[ Han Junyoung : I left something in school locker #42. Pick it up. It's a treatment tool. ]
A text with a firm, commanding tone.
The moment she read the message, Jieun's lower abdomen tingled.
The back hole that had been penetrated yesterday clenched and tightened, and hot love juices gushed out from between her legs. The insides of her thighs flushed hot.
"Haa......"
Jieun hurriedly packed her bag and headed to the Engineering Building.
As she quickened her pace toward the hallway of the Engineering Building with the unmanned lockers, a face that strangely drew her eye caught her attention from afar.
A woman with flowing long black hair, a small face, and a heavy breast volume that just couldn't be hidden even over her shirt.
'I've definitely seen her somewhere before.'
She remembered.
Who was that in the English Department?
She didn't care about students from other departments, but she remembered because she saw Han Junyoung talking to her.
Back then it was a scene she passed by without much thought, but for some reason she felt subtly annoyed.
But looking now, that woman wasn't alone.
She was standing in a confrontation, surrounded by three women radiating a hostile atmosphere.
A group far flashier than normal.
'What do you call those kinds?'
The woman in the center, standing well over 170cm tall with heavy smoky makeup, wearing clothes with luxury logos, looked down at Seo Yerin.
Next to her was a woman with brightly bleached hair. A piercing was in her exposed navel under a crop top, and she was wearing shorts that dangerously revealed her hip line.
The last one had a neat, shoulder-length bob and a knee-length dress, giving a pure impression.
She looked demure, but her enormous chest that seemed about to burst from the cardigan was the most standout among the three. She was grinning, but there was a thorny glint in her eyes.
Lee Jieun could remember what those were called.
'Playing delinquent? Even at university?'
It was utterly pathetic.
Jieun scoffed inwardly and quickened her pace.
Normally she might have watched, but now she didn't have the leisure to care about such petty squabbles.
'Treatment tool...'
What could Junyoung have put in locker #42?
Jieun moved with a pounding heart.
Somehow she felt like something was dripping between her legs.