The Sister I Could Never Escape
I thought I was going to die trying to stop her after that. To calm down my sister, who was screaming at the top of her lungs that she would kill Eunah, I had no choice but to put on a tearful ass-kissing—no, a full-blown charm offensive. I told her that if she killed Eunah, she could forget about ever seeing my face again. It was an extreme measure, but it seemed to work. She finally calmed down.
The problem was…
“…Huh?”
“What? No, sis, what are you—”
I was completely thrown off. A confinement ending was the absolute last thing I wanted! What was this, My Very Own Little Brother?!
“…Y-yeah.”
Of course I had no choice but to quietly accept it. Even if her overwhelming aura wasn’t directed at me, it was the kind of presence that could crush people just by existing.
“Uh… um, that’s a bit… And who’s even going to break into an underground bunker?”
She was completely serious, but I couldn’t help panicking. If her affection went any higher, I was really going to end up trapped here for life! Wait—had I already been caught…?
If I actually had a real older sister, would she be like this…?
Her worried words hit me with a sudden wave of emotion. At the same time, I felt a sharp, needle-like pain stabbing through my chest. In the end, this relationship was fake. A grotesque bond born from my ability and a mountain of lies. It was ridiculous to feel familial love for someone who wasn’t even my real sibling.
To forget even a little of the guilt, I had a duty to go along with whatever she wanted. It’s all so we can survive… I didn’t do anything wrong… Is it really my fault the world ended up like this?
It was endlessly selfish rationalization. But without thoughts like these, I’d probably find myself too disgusting to keep living.
While I was lost in all those worries, I felt a strange sensation on my stomach.
“Sis…”
“Hm? What’s wrong?”
“Why do you keep touching my stomach?”
She was gently, softly stroking my belly. She was avoiding the wounded area, but… the feeling was weirdly intimate.
She looked at me with a confident, almost concerned expression.
“Ah, no, it doesn’t hurt, but… it feels strange.”
“Hmmm… really?”
She made a suspicious face, then suddenly pinched the edge of my belly button.
“…Ugh!”
A spark shot through my brain. What the hell?
She smiled with a strange, amused look as she watched my reaction.
“Sis, stop that…”
I had a bad feeling that if this continued, things would get dangerous. But she gazed at my belly button like it was the most adorable thing in the world and said,
She licked her lips and immediately moved toward my navel.
“Ah, hah… Sis, w-wait a second!”
Her tongue invaded my belly button.
“It’s dirty in there… Ngh, S-Sis, I feel weird…”
She licked carefully inside at first, then began flicking her tongue rapidly like she was picking up speed.
“Sis, s-stop!”
Maybe she heard me—her tongue paused, then she pulled back and spoke in a seductive voice.
“Wha—put what in?”
“Sis, it looks clean enough now, so you can stop—ngh!”
Before I could finish, her finger plunged into my belly button. Squelch. The sticky sound of saliva mixed with the lewd noise as she scraped inside.
“S-Sis, I really think we should stop…”
What the hell was going to happen to me…?
Outside the bunker, it was a completely different world. It was the law of the jungle in its purest form. Only the strong survived, and the concept of human rights had collapsed along with society. Of course, there were still good-hearted people… but most of them had died long ago, not long after the Gates first opened.
The girl, Kim Eunah, understood her situation very well. Objectively, she had a weak body and a crippled leg. Her appearance was also far from ordinary, which made her an easy target for trouble. She was full of weaknesses, yet she fought desperately to grow stronger so she could survive.
After leaving the bunker, she lived alone. She set up a base in an abandoned villa and scouted the surrounding area. While searching for food and exploring outside, she faced countless threats—people who lusted after her body, monsters that saw her as prey. But in the end, the girl survived. She used every means available to her.
Even if it meant using innocent people as bait—
Even if it meant seducing someone with her body and then stabbing them in the back—
Everything was for the day she would reunite with that boy.
The girl survived in silence. Until rumors of a “witch” began to spread in the nearby area. As time passed, more scars accumulated on her body, and her eyes grew increasingly dead. She tried to fill the empty space the boy had left with anything she could find, but nothing worked. Her lingering attachment only grew stronger.
And every night, she dreamed of a happy future with him.
In the girl’s imagination, she and the boy were together.
Going to an amusement park together, eating, talking, sharing their love. That was what the girl desperately longed for.
At first those fantasies brought her satisfaction, but later they only returned as unbearable emptiness. When she woke from the dream, all she saw was herself, alone in a decaying villa. Her hair had grown dry and brittle from not being washed in ages. Her once delicate hands were now rough and calloused from hardship.
Still, the girl never lost hope. As long as the boy was alive and they could meet again, nothing else mattered.
But whenever she thought of the boy lately, her stomach would ache with a strange pain. A bad premonition would wash over her, but she would simply shake her head and head out to look for food.
After that day, I deliberately avoided her whenever I saw her.
“Sis, I really need to use the bathroom!”
“Sis, I’m full! I’ll just skip today!”
Eventually she seemed to notice something was off with my reactions. She approached me and spoke.
“Hanseong…?”
When she narrowed her eyes at me like that, it felt incredibly oppressive.
“Yeah, sis. What’s up?”
“What? No way… You know how much I like you~”
“I-it’s not that…”
I tried to brush it off, but she suddenly grabbed me tightly and threw me onto the bed.
Thud.
“Uh… Sis?”
Her gaze was like a snake staring at its prey, locked directly onto my belly button.
“S-Sis…? You’re not going to… right?”
Just her looking at me made my stomach feel ticklish.
“N-no, that’s not true. You’ve been paying so much attention to me…”
A chill ran down my spine in more ways than one. I desperately tried to stop her.
“Sis, w-wait! I was wrong, so please stop!”
I struggled with everything I had to break free, but…
She held my arms and legs in an iron grip.
“No, don’t! Ah, nghhh——”
And so I was subjected to a chaotic, thorough cleaning. After the strangely pleasurable time finally ended, I dragged my exhausted body back to my room. Convincing her not to sleep together was an added bonus.
“Haa… Today was exhausting too.”
I carefully lay down and checked my condition. I poked around the wound, but there was almost no pain.
“Huh…? It’s already healed?”
Maybe her hands really were healing hands. I quickly unwrapped the bandages and saw that the wound had closed up remarkably well.
“It must have been shallower than I thought…”
It seemed the time to leave this place wasn’t that far off. In this kind of world, leaving might look like madness, but I no longer had the confidence to maintain this relationship.
Every time she looked at me with those affectionate eyes, guilt surged endlessly from my chest. Because I wasn’t her real family. Staying by her side any longer would probably only burden her.
“Still… it really was fun, like being part of a real family.”
I muttered words I could never say to her and began planning my escape.