"Ah? My sister actually stopped hiding. Could it be that she was moved by Kuroko's perseverance and was finally willing to be with Kuroko? That's really ... uh hehe hehe ~. "
Shirai Kuroko, who had just successfully wrapped her arms tightly around Misaka Mikoto, was slightly startled at first, clearly not expecting such an outcome. However, that brief moment of surprise quickly melted away into pure, unrestrained delight. Her imagination, as always, took off at full speed, painting all kinds of overly romantic and completely unrealistic scenarios in her mind. The mere thought that her beloved Onee-sama might have finally acknowledged her feelings made her heart flutter wildly. Unable to suppress herself, she began to giggle in a rather strange and suspicious manner, her laughter echoing oddly within the room.
"You are enough."
Misaka Mikoto couldn't help but get a black line when she saw it, and immediately pushed Shirai Kuroko away.
The sudden rejection caused Kuroko to stumble back slightly, her expression freezing as if she had just been struck by lightning. Misaka, on the other hand, showed no signs of guilt. Instead, she brushed off her sleeves as if she had just shaken off something troublesome, her face returning to its usual composed yet slightly impatient look.
"I'm in a good mood today, so I don't bother to argue with you, but don't come here to ruin my good mood again."
Her tone carried a rare hint of leniency. Normally, she would have already electrocuted Kuroko without hesitation for such behavior. Today, however, something was clearly different. There was a lightness in her voice, a subtle warmth in her expression that was hard to miss—if one paid close attention.
With that said, she calmly returned to her side of the room. The familiar space was neat and orderly, reflecting her disciplined personality. She opened her drawer, took out a neatly folded set of pajamas, and prepared to head to the bathroom. Her movements were relaxed, almost unusually so, as if she were savoring a pleasant memory lingering in her mind.
"Ah? Why is this happening...?"
Facing the cold reality of being mercilessly cast aside, Shirai Kuroko stood there in disbelief. Her earlier excitement shattered instantly, replaced by a sense of loss and confusion. Her shoulders drooped, and she looked as though the world had just betrayed her.
However, that dejection did not last long. Kuroko was, after all, not someone who would remain downhearted for too long—especially when it came to matters involving Misaka Mikoto. Her sharp instincts soon kicked in, and her expression gradually shifted from sadness to suspicion.
"No, why is Onee-sama in such a good mood today? She usually doesn't act this happy even when something good happens. What exactly happened today?"
Her eyes narrowed as she began analyzing the situation like a seasoned detective. Every detail—from Misaka's tone to her unusually tolerant behavior—felt like pieces of a puzzle that did not quite fit together.
Inside the bathroom, Misaka Mikoto simply rolled her eyes, completely unwilling to entertain Kuroko's questions. Without saying another word, she stepped in, closed the door firmly behind her, and locked it with a decisive click. The sound of running water soon followed, effectively drowning out any further noise from outside.
This simple action completely cut off Kuroko's chance of launching another "surprise attack."
"Something is wrong... this is very wrong!"
Seeing the door shut so decisively, Shirai Kuroko's suspicions only deepened. She crossed her arms and began pacing back and forth, her mind racing faster than ever.
"Could it be that?! Onee-sama is having an affair?!"
The moment that outrageous thought appeared in her mind, even Kuroko herself froze in shock. Her eyes widened, and her entire body stiffened as if she had just uncovered some forbidden truth.
"Ahaha... how is that possible? How could someone as outstanding as Onee-sama fall for those disgusting men?"
She forced out an awkward laugh, trying to dismiss the idea. Yet, the more she thought about it, the less convincing her own denial became. After all, this was Academy City—a place filled with countless students, where youthful emotions often ran wild. Stories of young couples forming relationships were not uncommon at all.
The possibility, however slim, was still a possibility.
"No! This is absolutely unacceptable! She can't do something like that!"
Kuroko suddenly shouted, her face flushing with a mix of anger and panic.
"Onee-sama is mine! I was obviously the one who came first!"
"She must have been deceived by some outsider, right?! That has to be it!"
Her thoughts spiraled further and further into dramatic territory. In her mind, an imaginary villain had already taken shape—a shameless, despicable figure who dared to steal away her beloved Onee-sama.
"Damn bastard! You actually dare to steal my sister from me? Kuroko will never let you go!"
"Just wait! Once I catch you, you'll regret ever showing up!"
At that moment, Shirai Kuroko clenched her fists tightly, her resolve solidifying. From this day forward, she decided that she would follow Misaka Mikoto everywhere—morning, noon, and night. She would uncover the identity of this so-called "culprit" and put an end to this imagined threat once and for all.
Unbeknownst to her, this decision would mark the beginning of a series of troublesome events.
Meanwhile, inside the bathroom, Misaka Mikoto remained completely unaware of the storm brewing outside. The steady sound of water masked everything, including Kuroko's increasingly unhinged monologue. She simply focused on washing up, her thoughts drifting elsewhere, perhaps replaying something that had brightened her day.
She had no idea that, because of her silence and indifference, Shirai Kuroko had already embarked on what could only be described as a "tailing operation."
And this, What kind of trouble it will bring to her.
It is estimated that when she understands the cause and consequences in the future, she may regret today's actions
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