Common Sense Alteration - Professor Kim's Guest Reception (1)
Weekend. I was spending a peaceful weekend inside the dormitory. After playing games with Taeyoung in the morning, we each spent time on our own computers around lunchtime.
"Huh? Hyung, looks like some celebrity got busted for drugs."
"What?"
At that moment, Taeyoung suddenly shared some entertainment news. Drugs? I tried to search for the news on my laptop too. But before I could even search, the moment I connected to the portal site, a massive headline caught my eye.
[Idol Choi Ha-young Drug Scandal]
'Choi Ha-young?' She was a female idol from the girl group 'Starbridge' who had been quite popular until a few years ago. Of course, 4S was the most popular now... but the group Choi Ha-young belonged to was still doing pretty well. Yet suddenly, drugs? With curiosity filling me, I read through the news.
The article contained shocking details.
[Multiple staff members at XB Entertainment, the agency behind girl group Starbridge, are under investigation for drug charges.]
'Wow...' It wasn't just Choi Ha-young's problem. The agency itself seemed deeply connected to drugs. Not only the female idols but even the agency's executives were facing drug charges.
An image of a woman under the influence of drugs flashed through my mind—pupils slightly unfocused, drooling fluids while lost in a haze. Had Choi Ha-young looked like that too when she was on drugs? It felt like I'd caught a glimpse of the dark side of the idol industry after only ever seeing the bright, glamorous parts.
As I continued reading the news, my eyes drifted to the related articles listed below.
[31 Arrested for Group Orgy While Hallucinating on Drugs]
[50-Year-Old Ex-Convict Uses Drugs for Sex Party with Female College Students]
[20-Year-Old Woman Addicted to Drugs Reveals the Dangers of Drug-Fueled Sex]
'Good grief...' There was a whole slew of drug-related news. Clicking through and reading them one by one, each article was packed with highly provocative content.
'Is it really possible to throw away your family and your entire life just for pleasure...?' At least according to the articles, it was. The stories described sensations beyond imagination—once you experienced it even out of curiosity, you could never escape that overwhelming high. The scariest part was that even trying it just once made escape impossible.
'Terrifying...' It was astonishing how easily a person's life could be ruined like that. Since I avoided cigarettes altogether out of fear of addiction, the descriptions of drug dependency felt even more frightening.
'I thought Korea was clean of drugs and guns...' Judging from recent news, that didn't seem entirely true. In the future, Korea might end up like foreign countries where gun incidents and drug cases happened every single day.
Come to think of it, it wasn't just the news lately—drugs seemed to be a common topic across various media. Crime dramas, movies, and webtoons about catching criminals often featured drug stories. Koreans were gradually becoming more familiar with drugs. Especially when news broke about famous celebrities or chaebol heirs using drugs, it almost felt like some luxurious hobby reserved for the wealthy and idle.
Just then, Taeyoung's voice reached me.
"Whoa. Choi Ha-young really got arrested for drugs..."
"Yeah."
"The Starbridge fan cafe is burning up right now, hyung."
Apparently, fans were flooding the fan cafe of the group Choi Ha-young belonged to with posts.
"Hyung, did you know this?"
"What?"
"The most powerful drug known to mankind is endorphins."
"Endorphins... aren't those produced inside the human body?"
"Exactly. And they say the effect of endorphins is 800 times stronger than morphine."
"How do you even know that?"
"All thanks to the power of Doldol Wiki."
Doldol Wiki. Whenever Taeyoung got curious about something, he seemed to head straight there to look it up. This time, while digging around about 'drugs,' he'd apparently stumbled upon information about endorphins.
While chatting with Taeyoung, I started feeling hungry. Before I knew it, it was already lunchtime.
"Hey, let's go eat."
"Hyung-nim, actually, there's something I need to tell you..."
"What?"
"Let's have chicken for lunch."
"Well... sure, why not."
We often ordered delivery food when staying in the dorm. The dormitory cafeteria food wasn't particularly tasty, so we frequently ordered in when we got bored—hamburgers, chicken, pizza, and so on. Plenty of options were available.
"Hyung-nim, by the way... it seems like you owe me some Cheongyang sauce chicken..."
"Huh?... Ah!"
I realized what Taeyoung was getting at. Back at the freshman welcome party, I'd promised him Cheongyang sauce chicken. When we decided the last person to reply on their phone would get punished, I'd told him I'd buy him the chicken if he replied quickly. Thanks to that, he'd avoided last place and Song Yena had ended up with it instead. With everything that happened that day, I'd completely forgotten. It looked like Taeyoung was planning to collect on that promise for lunch today.
'But...'
"What's wrong, hyung?"
Taeyoung spoke while watching my slightly furrowed expression. I gave him my honest thoughts.
"Hey, that place... they don't do delivery."
"That's right. Is that my problem to worry about?"
"...You little punk?"
Cheongyang sauce chicken was the signature menu item at 'Dalsul Hangari,' a bar located in the food alley right in front of the school main gate. It was technically a bar, but they served chicken during the day. Normally, a chicken place would offer delivery, but that spot didn't. And Taeyoung's reply of "Is that my problem to worry about?" clearly meant he wanted me to go out and buy it myself.
Damn guy. I immediately started negotiating with him.
"Hey, I'll just buy you some other chicken. Let's order delivery."
"No thanks, hyung-nim. Right now, it has to be Cheongyang sauce chicken or nothing."
"You're really stubborn..."
Taeyoung looked like he'd die if he didn't get that Cheongyang sauce chicken. 'Well... a promise is a promise...' Thinking about it, if it weren't for Taeyoung at the freshman welcome party, I wouldn't have had sex with Song Yena either. Compared to that, buying him some chicken seemed like a small price to pay.
I pressed the power button on my laptop and slowly got ready to head out.
"Oh. Hyung-nim, I thought you'd refuse a few more times."
"A promise is a promise."
I threw on a simple tracksuit. It was the weekend anyway—no classes, and hardly anyone on campus. Naturally, with no people around, the food alley in front of the school would be nearly empty too. A tracksuit was perfectly fine for a quick trip.
'Well... nothing much to bring...' Besides my card for payment, I didn't put anything else in my pockets. I slipped my hands in to check if anything else was there.
'Oh...'
My left hand felt my debit card, while my right hand brushed against cylindrical objects and a cubic box. Thanks to the quest system, my pants pockets could store quest items almost infinitely. I could pull quest items from the pockets of any pants I wore. I was relatively used to it by now, but what surprised me was the presence of that cubic box.
'I forgot about this again...' I'd received it as a reward at the freshman welcome party and completely spaced on it. I should open it when I get the chance. I kept forgetting after stuffing things into my pockets while distracted. From now on, it'd be better to open rewards right away.
'All dressed.' With that, I stepped out of the dorm in my tracksuit to buy the chicken.
The campus looked empty, like it had been abandoned. Even the fountain was still on the weekend. The quiet campus gave off the feeling that I'd rented the entire place for myself. Normally on weekends, people from the apartments near the back gate would come to relax, or hikers would pass through heading to the mountain attached to campus—but today, even though it was the weekend, there was no one around.
'Is there really nobody here?' No classes meant no students, and naturally no professors either. I strolled through the silent campus, slowly making my way toward the main gate. But my steps gradually slowed.
-Click. Click. Click.
It was because of a woman who had entered my line of sight.

The ivory slim dress clinging tightly to her body revealed her voluptuous figure in full. Full breasts. A narrow waist. And a plump, curvaceous hip line. Her pale thighs peeked out halfway from under the dress. Below that, smooth calves and ankles drew the eye, along with her high heels. Her voluptuous body exuded mature sensuality. Even from afar, her skin looked pale and subtly radiant—like the color of soft tofu. A flawless, pure white. Combined with her curvaceous figure, that pale skin radiated pure sex appeal.
Anyone could tell this wasn't an outfit meant for walking around a university. If I had to describe it... it was the kind of revealing attire a bar hostess might wear to work. The dress had a plunging neckline, exposing the elegant line from her neck down to her beautiful cleavage. A gold necklace rested around her neck, complementing her pale skin and collarbones to enhance her charm even further. The tight ivory dress also seemed to accentuate and lift her pale, ample breasts.
-Click. Click. Click.
'Ha... what a killer body... Huh?' As I watched her approach, I soon realized who she was.
'Cha... Eunju?'
The woman walking toward me, phone in her right hand during a call and handbag in her left. Cha Eunju. She was the mixed-heritage student taking the same Financial Management class as me—Cha Eunyung's older sister. And the woman who had sex with me last time after I blackmailed her using Cha Eunyung's sex video while pretending to be Professor Kim Byung-yoon. The image of her reaching climax multiple times that day came rushing back. Because I'd sprayed the itch spray a bit too generously, her reactions had been extremely intense. Her soft, supple skin and voluptuous body seemed perfectly optimized for sex. Unlike the budding female college students, she possessed the allure of a fully ripened fruit. Her seductive charm was in a completely different league from the other girls.
And that woman... was walking across the Nuri University campus on a weekend. In the silent campus, only the sound of her footsteps reached my ears.
-Click. Click. Click.
As she drew closer, I could gradually hear her phone conversation.
-Mmm mmm mmm mmm mmm mmm.
"Really? Seeing as it's Yoon-woo, Mom and Dad must be really happy, right?"
I couldn't hear the other person's voice—only Cha Eunju's. It seemed her husband had taken their child to her parents' house.
-Mmm mmm mmm mmm mmm mmm mmm mmm mmm mmm mmm mmm
"I should've gone with you. Sorry, honey."
-Mmm mmm mmm mmm mmm mmm mmm mmm mmm mmm mmm mmm mmm
"Is Yoon-woo crying? Hmm... Let me talk to him for a bit."
Maybe because Mom wasn't there. It seemed the little boy named Yoon-woo was crying. Cha Eunju wanted to talk to her son. Soon, it sounded like Yoon-woo had taken the phone from his father.
"Yoon-woo, you can't cry when Grandpa and Grandma are there, okay?"
-Mmm mmm mmm mmm mmm mmm mmm mmm
"We had no choice because of the appointment... but you still can't cry. Grandpa and Grandma will worry."
-Mmm mmm mmm mmm mmm mmm
"Anyway, if you don't stop crying, I'll spank you later tonight. Got it?"
She was earnestly trying to persuade the little boy, her son Yoon-woo.
-Mmm mmm mmm mmm mmm
"Okay. If you cry again, I'll spank you, so don't cry. Got it? I'll make you something delicious tonight."
-Mmm mmm mmm mmm mmm mmm mmm mmm mmm mmm
"Okay~ I love you, Yoon-woo~"
She seemed to have successfully calmed the little boy named Yoon-woo. Then her husband apparently took the phone back.
-Mmm mmm mmm mmm mmm mmm mmm mmm mmm mmm mmm
"No, I'm the one who's sorry. See you tonight, honey. Love you~"
Cha Eunju was expressing her apologies to her husband over the phone. It seemed to be because she couldn't go with them to her parents' house with the child. In the meantime, she had already approached right in front of me. She was coming in through the main gate while I was heading out. We were walking in opposite directions. The closer she got, the clearer the sound of her heels became. And I could see her appearance in more detail.
-Click. Click. Click.
Cha Eunju. Her hair was tied up in an updo, fully exposing her pale neck. She wore a gold necklace with a teardrop-shaped pendant and pearl-like earrings. The pearl earrings swayed gently with each step she took. The necklace and earrings suited her perfectly, especially emphasizing her beautiful neckline.
Why was she walking around the Nuri University campus on a weekend? And in such a revealing outfit that blatantly showed off her figure? It wasn't something you'd wear to university, nor was it appropriate for a married woman to wear out on the weekend. But I thought I knew the reason.
Professor Kim Byung-yoon. He must have called Cha Eunju to the school. Had he instructed her to wear such a provocative outfit? That was entirely possible. Using the anal sex video of Cha Eunyung to blackmail her... and doing whatever he wanted with her.
Just then—
Quest: Professor Kim's Guest Reception
📍 Location: Professor Kim Byung-yoon's office in Family Life Building B, Room 201
🎁 Reward: 5 CP, General Reward Selection
A new quest had been generated.
-Click. Click. Click.
Immediately after, Cha Eunju brushed past me. As she passed, a pleasant fragrance wafted over me.
'Perfume?'
It was a subtle, nice scent. I turned my steps that had been heading toward the main gate and began slowly following Cha Eunju. We had the same destination.
'Heh heh...'
Thirty minutes later, what kind of state would Cha Eunju and I be in? Just imagining it made my cock stiffen.