After coming out of the reverie, Shin slowly opened his eyes.
His vision returned to normal, and the first thing he saw was Mira sitting in front of him. She looked exactly the same as before, her posture calm, her expression gentle, and that same soft, beautiful smile resting on her lips.
Nothing about her appearance had changed.
But something inside him… had.
The way he looked at her now was different. There was a depth in his gaze that hadn't been there before. It wasn't just curiosity or interest anymore. It had turned into something far more intense—something filled with admiration, understanding, and a quiet, growing affection.
Mira noticed his gaze but didn't react much, her expression remained soft as she spoke calmly.
"What you just saw was my past life till now," she said gently. "From the moment I was born… to the moment we met."
There was no hesitation or regret in her voice.
She wanted to show her past, her every moment, her entire life to him, she had willingly shown him everything.
She looked at him quietly for a moment before continuing.
"You have just acquired a soul element magic—'Soultrace'."
Her voice remained steady as she began to explain.
"It allows you to see someone's past life. If the person is weaker than you, you can use this spell freely, and they won't even realize anything happened."
She paused briefly, letting him absorb her words.
"If the person is equal in strength to you, they will only feel that something was used on them, but they won't be able to detect what exactly it was… unless they also possess soul element abilities."
Her expression grew slightly more serious.
"But if the person is much stronger than you, even if they don't have soul element magic, they can still detect or block it. In that case, you would need their permission to access their mind and read their past."
Mira then lowered her gaze slightly, her voice softening again.
"I could only transfer the knowledge of this ability—'Soultrace' for now."
She continued, her tone calm but firm.
"I have only two other soul-related spells. The first one is 'Psychor – Soul Piercer'."
"It is an offensive spell that directly harms a person's soul. However, it only works effectively on those weaker than you. Stronger individuals will naturally resist it with their mana or aura."
This time, her expression softened again, almost gently.
"The second one is 'Reanima – Restore the Soul', it is used for healing. It restores the soul to its perfect state and can cure mental damage, including attacks on the mind or even mental illnesses."
"In the future, I will give you every spell you would ever need."
Mira said it softly, yet there was a quiet certainty in her voice, as if it wasn't a promise she hoped to fulfill—but one she knew she would.
Her eyes sparkled faintly as she looked at him.
"We'll have to train every day," she continued, her tone turning slightly more lively. "So from now on, I'll be teaching you a new spell every day, okay?"
She tilted her head just a little, her gentle smile still present, waiting for his response.
To be honest, getting to learn spells—especially something as rare as this, a power no one else in this world seemed to have—was already crazy on its own, but on top of that, getting to spend time with Mira every single day felt like the perfect bonus and somehow, that made it all feel even more worthwhile.
Mira didn't tell Shin that she had also seen his past life, and what she saw left her quietly satisfied—especially the fact that he had remained single his entire life until the very end. A faint, almost imperceptible smile lingered on her lips, her eyes soft yet carrying a possessive glint, as if that truth alone had reassured her that there had never been—and would never be—anyone else in her place.
Two days passed quietly and joyfully. During his days of rest, Shin spent most of his time playing with and pampering Lucy, while the rest of his day was devoted to Mira, who patiently taught him how to properly use the Soultrace spell. Everything felt calm, almost perfect.
However, Shin slowly began to feel uneasy about his big sister.
She had started distancing herself from him.
At first, it was subtle. She spent more time away, often keeping to herself. But gradually, it became more noticeable. Sometimes, she would outright ignore him.
There were moments when she would leave the house and wander into town without telling him where she was going. That alone made something in his chest feel tight.
'...Maybe I'm overthinking… or maybe I'm just being overprotective of her?'
But after that intimate moment in the library he was naturally more worried about her.
His chest tightened, thoughts spiraling faster than he could stop them. His thoughts refused to settle.
Whenever he tried to talk to her, her replies felt delayed, as if she was carefully choosing each word instead of speaking naturally. It created an invisible distance between them that hadn't been there before.
And yet, at times, she would walk past him, brushing shoulders lightly, as if nothing had changed at all. That contradiction only made it worse.
Tonight was no different.
She didn't come to have dinner with them, and she didn't give any explanation either. With their mother busy outside due to the upcoming engagement party, there was no one who could question her directly.
Now—She wasn't even talking to him!!
Shin sat at the dining table, his mood visibly sour. The usual warmth around him had faded, replaced by a quiet frustration he couldn't hide.
Mira and Lucy both noticed it immediately.
Mira looked at him for a moment before speaking gently, "Don't worry, I'll try to talk with her." After saying that, she stood up and left.
Shin fell asleep peacefully that night.
Too peacefully.
It wasn't the kind of rest that came from exhaustion or comfort, but something deeper—unnaturally deep. His body felt completely relaxed, as if all resistance had faded away. It was almost like being drunk, or worse… as if he had been quietly sedated, sinking into a sleep that didn't want to let him wake up.
Time passed slowly.
And then, as dawn began to break—Shin's eyes fluttered slightly, a sign of waking up.
A dull ache throbbed in his head, faint but persistent, making him frown slightly as he tried to gather his senses. His thoughts felt sluggish, as if they were still half-asleep.
But then—His body felt heavy, he noticed something else.
It took him a moment to realize it, someone was sitting on his lap. A soft weight pressed against him, warm and unmistakably present. Arms wrapped tightly around his neck, holding him in place.
Shin's eyes fluttered open, still heavy with the unnatural sleep that had claimed him. The first thing that filled his vision was the soft pink floral silk of a D-cup bra—delicate lace edging, designed to cradle and tease at the same time, the fabric thin enough to hint at the warm curves beneath. It was pressed right against his face, warm and impossibly soft.
A slow, deliberate roll of hips brushed against his lap, grinding with torturous laziness over the growing hardness straining in his pants. Hot breath ghosted over his neck, followed by the wet, slow drag of a tongue tracing his skin. Nails dug lightly into his shoulders as slender arms tightened around his neck, pulling him even closer until her full breasts smothered against his cheek and mouth.
He knew that scent. That skin. That low, broken whisper of his name between each lick.
Emily.
His big sister—the one who had been avoiding him for days—was now glued to him, moving like she was starving for every inch of contact.
But when he instinctively tried to wrap his arms around her, cold metal bit into his wrists. His legs wouldn't budge either. He was handcuffed to the chair, ankles tied firmly to the wooden legs. He could barely shift his hips, let alone push her away or pull her closer.
"Sis… what are you doing?" His voice came out rough, confused. "Why have you handcuffed me?"
Emily lifted her head slowly. Her crimson eyes—glazed with raw, overwhelming love and heavy lust—locked onto his. Her lips were parted, glistening. She licked them once, sensually, before answering in a voice that trembled with desperate need.
"You said you love me, right?" she whispered, hips still rolling in that slow, teasing grind against his now fully hard cock. "You said you want me more than anything… that you want only me. Just you and me… no one else."
Her arms tightened around his neck, breasts pressing harder into his face as she leaned in until their foreheads almost touched.
"Then why did you have to choose that girl?"
Her voice cracked, but the lust in her eyes only burned hotter. She rocked her hips again, deliberately dragging her clothed heat along his length.
"If you're going to marry someone… marry me first!!"
She said it like a plea and a command all at once—her submissive side completely gone, replaced by raw, unfiltered obsession. Her crimson eyes shimmered with unshed tears even as she licked her lips again, clearly fighting the urge to devour him right there on the chair.
"I've been trying to stay away… trying to be good… but I can't anymore, Shin. I can't watch you give yourself to Mira when I've loved you like this for so long."
Her fingers threaded into his hair, gripping tight as she rolled her hips once more, slower, more possessive.
"So I'm not asking anymore. You're mine first. Say it. Tell your big sister you'll marry me before anyone else… or I won't let you leave this chair until you do."
She leaned down and dragged her tongue slowly up the side of his neck again, then nipped at his earlobe, voice dropping into a needy, trembling whisper only he could hear.
"Please, Shin… choose me. I'll be so good for you… I'll be your perfect, obedient wife… just say you'll marry me first."
Her body trembled against him, every slow grind of her hips a silent promise and a threat at the same time—pure yandere devotion wrapped in desperate, submissive longing for her little brother's exclusive love.
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