At evening, Shin shifted in his sleep, frowning as an familiar urgency invaded his dreams. A moment later his eyes snapped open— Bathroom, now!
He wanted to get up but felt his left hand stuck between something soft, turning to the source he found a beautiful girl, with silky black hair and a bright, innocent charm that made her extremely cute. She's Emily Silverheart his older sister. Her soft fair skinned hands are wrapped around his body and she was sleeping so soundly that he didn't have the heart to wake her up.
But unfortunately, even though he is an adult mentally he can't hold back much longer as his body that is physically only twelve, he urgently needed to relieve himself. After some mental struggle on how to handle such a serious situation. Fortunately Emily woke up felling his struggles, and immediately straddle him, placed her hands on his both cheeks and moved her face too close to him.
"How are you feeling now?"
"Do you need anything?"
"Do you want to eat?"
"You're not in pain anymore… right?"
"You look pale… should I call someone? Or should I stay right here?"
"Does it hurt somewhere? Tell me where. I'll fix it."
"You wouldn't lie to me, would you…?"
"You need me here, don't you?"
"You'll rely on me if you need help, won't you?"
"You won't leave me worried like this again… right?"
She jerked her head in every questions she asked, sometimes unintentionally or maybe intensionally her lips almost grazed his.
Shin who was bombarded with many questions was speechless, not because if he moved his lips even a little, he might end up doing something he shouldn't—like kissing his own sister and becoming a siscon.
"Calm down sis, I'm feeling well now, I don't need anything, I'm not hungry right now, it doesn't hurt anymore, don't call anyone but you can stay with me, It's really doesn't hurt, I would never lie to you, I want you here, I'll always rely on my big sister, I would never leave you."
He answered her every questions and held her cheek with his right hand. He looked into her ruby like sparkly eyes that is moist with tears their faces especially their lips are just inches apart each other. He can feel her tears dripping on his cheeks, she looked really pitiful right now, that he couldn't help but sat up on bed and hug her tightly while patting her head.
Emily was moved to tears she wrapped her arms around him tightly and started sobbing, 'Dad I couldn't keep my promise to you, I failed to protect My Shin.'
'Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin, Shin...'
'I promise I'll always protect you, I won't let anything hurt you ever again. I'll never leave you and I'll stay by your side, no matter what. Your big sister will always be with you!'
Remembering the promise she gave to their deceased father, she became even more obssesive for her little brother, as for her younger sister she is also very protective of her but her obsession for Shin is on another level.
Some minutes passed in silence and comfort, Shin didn't know what his big sister was thinking about but feeling she's no longer crying he tried to remove her from his lap. However she didn't budge at all her grip to his neck got even tighter, Shin tried to remove her arms in his second attempt but he couldn't do so and in the end he finally spoke..
"Big sister can you umm.. can you stop hugging me and sit somewhere else."
Emily's body trembled violently as she slowly lifted her head to look at her little brother. Her eyes widened in disbelief, her fingers tightening around him as if afraid he might disappear. The words echoed in her mind again and again.
'He doesn't want to hug me anymore!'
For a moment, her breathing became uneven, her grip tightening instinctively as panic flickered across her face. The thought alone felt unbearable. How could he say something like that?
The fear of losing even that small bit of closeness made her heart race uncontrollably.
It's.. it's disastrous to her...
"Shin you don't want to hug your big sister anymore, have I done something wrong, do you not love me anymore?!"
"No!.. you misunderstood big sister, I.. I just have to go to toilet."
"Ohh.. so, you need to go to the toilet, then I'd help you, let's go."
"Big sister, I don't need any help with it and I'm perfectly able to do daily tasks so you don't have to worry about helping me with such little things."
""Sigh… alright," she said reluctantly. "I'll let you go without me—on one condition."
Shin looked at her cautiously. "What condition?"
Her eyes fixed on him."You're going to say that you love me."
Shin without a single pause of hesitation said quickly..
"I love you big sister, I love you very much."
"Now can I go?"
He asked quite impatiently, while cursing his body control as a child in his heart.
Emily rolled to the left and while hiding her face in the pillow, she said quietly "go" and he rushed straight to the toilet.
She was felling very happy today, never ever has he responded to her like this, he was always very shy and unresponsive, whenever asked if he loved her he would always run away.
Well she had never cornered him like today before so it was like she won something big today.
Her love for her little brother is quite high and definitely arguable but she herself doesn't really know that yet.
When Shin returned from the washroom, he stopped at the doorway.
His sister was lying on his bed, her face buried deep in his pillow. As he stepped closer, he realized she was breathing in its scent, a strangely blissful smile spreading across her lips.
Shin froze.
For a moment, a certain pink-haired character from an anime came to his mind—the kind of girl whose obsession with the protagonist went far beyond reason.
The kind who would lock him away in an abandoned building so no one else could reach him.
The kind who would scare away—or even eliminate—any girl who dared approach him.
The kind who would stand against the entire world for his sake, whether it was powerful humans or even gods.
A girl so dangerously devoted that even killing the person she loved could somehow be twisted into an act of love.
'A yandere!!'
Seeing his big sister acting like that, Shin stood there frozen for a second.
No way…
Slowly his lips turned upwards he felt a sudden desire he never ever felt before. Seeing his big sister who always loved him so much and always care for his every need like this ignited a fire in his heart, his past life memory didn't help either to make him stop for what he's about to do.
Heart pounding, he moved silently, slipping onto the bed behind her. Leaning in close, his lips brushed the shell of her ear as he whispered, "I love you, big sister. And I want you."
The words shattered the air like glass. She jolted, her body convulsing in shock at the warmth of his breath ghosting her skin. For a few trembling seconds, she shook violently, as if her very soul was fracturing under the weight of his confession. Then, slowly, the tremors ebbed. She lifted her face from the pillow, cheeks flushed crimson, panting as though she'd sprinted a marathon. But the truth ran deeper, hotter—a storm of forbidden desire igniting in her veins.
She lifted her face, her eyes, wild and glassy with a hunger that mirrored the yandere's unhinged gaze, locked onto his. The room seemed to shrink around them, the air thick with the musky remnants of his scent on the sheets and the faint, salty tang of something blooming between her thighs.
Her breathing gradually steadied, and her thoughts began to catch up with reality.
Then it hit her.
Her entire face instantly turned bright red.
For a moment, she sat completely frozen, her eyes wide as the realization sank deeper and deeper into her mind.
'I… I… I was—'
Her brain completely short-circuited.
"Ah—"
Without saying another word, she suddenly jumped off the bed.
"D-don't look at me!!"
And before Shin could even react, she rushed out of the room in a panic, practically sprinting down the hallway.
The door slammed behind her.
Silence filled the room.
"…Did I break her?" he muttered, scratching the back of his head.
Shin wanted to tease her more but realising his own age and that of his sister he decided to calm himself down even if he wanted he couldn't do anything right now...
And there is his future wife also.
'Sigh... this is so sad.'
---------