Prologue: Amnesia
I had amnesia.
The doctor said it was short-term memory loss—I couldn't recall the last year. Damn it all.
Checking the date on my phone confirmed it: exactly one year had passed since the last day I remembered.
"How did this happen to you?"
The idiot doctor asked. I had serious doubts about how someone with the intelligence to question an amnesiac patient had become a doctor in the first place. Naturally, I couldn't give him the answer he wanted since I remembered nothing.
"For someone with amnesia, you have almost no external injuries. No brain damage detected either. You're good to be discharged, but since you're probably disoriented right now, let's wait for a guardian to arrive."
"No need for that."
"Pardon?"
"My guardian isn't coming anyway."
Guardian—family, friends, lover. None of those applied to me. Sure, I had a mom and little sister if you counted family, but our relationship had been in the gutter for over a decade. We didn't even greet each other anymore, and to them, I was nothing more than a thorn in their side.
If you asked why things were so bad with my family, there was a specific incident I could point to. It happened a long time ago: I had no clean pants to wear out, so as a last resort, I rummaged through the laundry basket for the pair I'd already taken off. But of all the bad luck, just as I was shoving laundry aside to find my pants and accidentally brushed against my sister's underwear, she—Kim Jiwon—walked in on me.
She screamed, convinced I was stealing her panties to do something perverted. Then Mom came rushing in and bought into the misunderstanding completely. Suddenly, I was branded a sexual deviant in my own home, marked as a person of interest. No matter what I said after that, it fell on deaf ears.
Mom had lived a pure, chaste life ever since Dad died, the epitome of conservative values. The idea that her son lusted after his own sister was such a shock it nearly made her faint. She was even ready to call the cops on me, but in the end, she held back to protect the family's reputation.
Instead, I became a ghost in my own house. That misunderstanding probably wouldn't clear up in my lifetime. I'd given up hoping it ever would.
Okay, so family was out for those reasons. But what about friends or a lover? There were reasons for that too.
Truth be told, I wasn't some unpopular loser who couldn't make a single friend. It wasn't that I never had any—it was that I'd lost them all. And it all tied back to a woman.
Joo Seoyoung. My childhood crush (though she probably never saw me that way). I'd finally mustered the courage to confess to her, and that was my downfall.
Stupidly, on the very day I confessed, the handsome guy everyone said was the most popular—Kim Eunseong—had already promised our friends he'd propose to her. By some cruel twist of fate, I was the only one out of the loop. My clownish spectacle was more than enough for them to start ostracizing me.
Joo Seoyoung burst into tears, and Kim Eunseong even beat me up. I was too ashamed to contact any of our friends after that. The pathetic thought, 'Was my confession really so disgusting it made her cry?' still haunted me.
Of course it did—that memory was just a few days old to me. Though by the calendar, it was over a year ago. Hell, it would've been better if I'd lost two years' worth of memories.
Anyway, that's how I ended up without a single relative or friend to worry about me during my hospital stay.
The doctor shrugged that if there were no other symptoms, I was free to go. I left the hospital.
Amnesia, huh? Something straight out of a drama happening to me felt strangely surprising—and a little exciting. In dramas, the protagonist usually gets amnesia and gets swept up in some romantic adventure.
Of course, that's TV. In reality, it was nothing but a massive pain. Losing a whole year of memories was disorienting as hell. I couldn't remember what had happened, what I'd done—nothing. It was scary and unsettling.
Take today: there were unread texts, and I couldn't make heads or tails of them.
Nah, I got that one. Adult spam. How do these scammers even get people's numbers?
I deleted it immediately. But I missed something crucial: the sender's name.
Joo Seoyoung.
It was a message from the woman I'd crushed on for so long. At that moment, I had no clue. I just trudged home, feeling a bit drained.
"I'm home..."
No one greeted me back, of course. I knew Mom and Jiwon were out at this hour anyway. Still, some inexplicable presence made me call out anyway.
Anyone who's lived alone can relate: sometimes you get chills like a burglar's inside, so you shout to yourself just in case.
But today felt really off. I heard breathing from my room. My spine went cold—maybe there really was a thief.
I scanned for a weapon, grabbed a rubber mallet, and flung the door open, ready to smash their skull.
But what I saw was more shocking than any burglar.
"What the hell are you doing in here?"
"Can't you tell?"
The source of the noise was my sister.
Kim Jiwon. Early twenties. 166cm tall, 48kg. College student and track athlete. A genius who snagged Olympic silver as a kid, got into Seoul University via regular exams—not sports admissions—and pretty enough for ad gigs. The pride of our family... and the person who hated her big brother more than anyone. She'd be kind to a homeless stranger but let her dying brother rot if it came to it.
And there she was: my panties flipped over her face, masturbating.
Unbelievable, but... bottom half naked, fingers in her pussy? That's masturbation, right? Dripping wet? Slam dunk.
Maybe I'd just ruined the future of Korea's rising track star—giving her a reason to end it all. Caught in a dilemma over whether to take this secret to my grave, she spoke up without batting an eye, bold as brass.
"I'm just sniffing the crotch stink off your panties while jerking off—so why the shocked face? Something bad happen?"
"Something bad? Witnessing the truth that my sister's a perverted psycho lunatic qualifies, yeah."
"? Not really. Sisters getting horny for their brothers is normal, isn't it?"
"...?"
Smack! I slapped my forehead without thinking.
What the fuck was this bullshit?
She sucked on the panties in her mouth, slurping noisily, her pretty face spewing filth.
"Every sister steals her brother's undies to masturbate with—it's obvious, right? Sniff sniff. Who'd waste a perfect cock scent like this? Plus, my nose is dog-level sensitive. Catch your smell within 100 meters, and I go into heat—can't think of anything but sex."
"Huh?"
"Ahh... jerking off isn't enough anymore. Please! Shove your massive cock in your little sister's pussy! I'll pay whatever!"
"Are you insane?"
I couldn't listen anymore.
"What, on drugs? Why the hell would I fuck you? Pretend I saw nothing today—just snap out of it."
"That's cruel! You're the one who made me like this! Train a girl, then take responsibility to the end! Hey!"
I'd soon learn what she meant.
Mom came home from grocery shopping and bowed deeply to me, polite as could be.
"Oh, Master. You're back."
"Mom. Earlier, Jiwon... huh?"
Master? Did Mom just call me Master?
"Did that panty-sniffing pervert sow bitch do something rude to you, Master? I'm sorry. As her mother, I'll retrain her. So sorry for the inconvenience."
Mom apologized repeatedly, like a service worker to a VIP customer—sincerely sorry. Then she changed into something insane: a top with the chest, armpits, and crotch cut out, exposing all her sensitive spots. Perverted as hell. She strutted around the house like it was normal.
I stood frozen, dumbfounded.
"Mom... when did I become your Master?"
"Pardon? Since that glorious day you trained me, of course?"
"Trained... sigh... how could a shy nerd like me train a pure woman like you?"
"Don't you remember? You used the Hypnosis App to implant suggestions in me. From that day, I vowed eternal obedience to my son as his sow mother."
Mom flashed a lewd smile I'd never seen before. Now I noticed: a tattoo on her navel. Heart-shaped, with writing declaring she'd live for her son forever.
What... what the hell was going on?