Mysterious Girl

Fuyuki City, Tohsaka Residence.

Rin Tohsaka and her younger sister, Sakura Tohsaka, had been up early and were now standing by the window, gazing out towards the gate.

"Why on earth is Father going to adopt Sakura into another family?" Rin muttered, worry etched on her face as she looked at her younger sister.

Ever since her mother, Aoi Tohsaka, had told her about this the day before, Rin had been anxious and on edge. She had thought many times about confronting her father, Tokiomi Tohsaka, to question him about why he would make such a decision.

Given her current abilities, which far surpassed her father's, she no longer held him in the same level of awe she once did. However, every time Rin prepared to act, Sakura stopped her.

Sakura had learned a lot about the world of magecraft recently, and she knew that each family's magic crest could only be passed down to one person. Since the Tohsaka family had two children in this generation, one of them was destined to be cast aside.

To be honest, after watching the memory fragment of herself trapped in a swarm of worms, Sakura had held a deep resentment towards her father, believing that he was the root cause of her future suffering. But over time, as she learned more about the magecraft world, her hatred for Tokiomi had faded somewhat.

She understood now that Tokiomi's decision to adopt her into the Matou family was not out of cruelty. Both she and Rin had exceptional magic circuits, and under the rules of magecraft, only one of them could inherit the family's magic crest. The other, no matter how talented, would face being sealed by the Clock Tower.

To spare her from that fate, Tokiomi had arranged for her to be adopted into the Matou family, where she would inherit their magic crest. Of course, Tokiomi was unaware of how twisted and vile the Matou family was, which is why he made the decision.

Understanding this, Sakura's resentment towards her father had largely dissipated. Tokiomi might not be a perfect father, but he wasn't someone who would knowingly send his daughter into hell.

"Don't worry, Sister. I'll deal with the Matou family today," Sakura said softly, trying to calm her elder sister. However, her voice carried a chilling undertone when she mentioned the Matou family.

"Eh? Why would you deal with the Matou family? I mean, I hate them for trying to take you away from me, but there's no need to go after them, right? Isn't Uncle Kariya part of the Matou family too?" Rin was taken aback by the killing intent in Sakura's voice, confused by her sudden hatred for the Matou family.

Rin had no idea what Sakura would face once she was adopted into the Matou family, so she didn't understand why her younger sister harbored such animosity toward them.

"Oh, right, I haven't told you everything yet. I've actually known about this for over half a month now," Sakura said solemnly as she looked at her sister. She didn't want to worry Rin, but she decided it was time to reveal the truth to prevent any misunderstandings about the Matou family.

After all, this wasn't the future she had once been destined for—she now had the power to change everything.

"What? Sakura, are you saying you have some kind of foresight?" Rin's eyes widened in disbelief as she stared at Sakura.

"That's… not quite the point. I'm telling you something important here," Sakura said, a bit exasperated.

"Foresight though! You can see the future! Isn't that important?" Rin pouted, giving Sakura a playful glare.

"I don't have foresight. I learned about that future from Eriri-nee." Sakura brushed off the topic of foresight and moved on.

Sure enough, as soon as Rin heard Eriri's name, she immediately forgot about the foresight issue.

"Oh, so it's from Eriri-nee. That makes sense." Rin nodded.

Sakura then recounted the events of the future she had once been destined for in vivid detail. Though she was young, Sakura was surprisingly good at storytelling, making the events she had witnessed in the memory fragments come alive for Rin.

By the time Sakura finished, Rin's face had turned pale, goosebumps spreading across her skin. What followed was a surge of intense anger.

"That damn Zouken Matou! I'm going to kill him right now!" Rin said through gritted teeth, ready to leap out of the window and storm over to the Matou residence to scatter Zouken's ashes.

"Calm down!" Sakura quickly grabbed her sister's hand, preventing her from ruining their carefully laid plans for the day.

Despite her efforts to restrain Rin, Sakura was secretly happy to see her sister so enraged on her behalf.

"Sakura, let me go!"

"Please, Sister, don't worry. Everything is going according to Eriri-nee's plan, and with my current strength, dealing with Matou Zouken is a piece of cake."

"But—"

Just as Rin was about to continue arguing, a clear, familiar voice rang out from behind them.

"But what?"

Both sisters quickly turned around to see two beautiful young women standing a few meters away. Behind them, a portal to another world rapidly shrank and vanished.

"Eriri-nee! Arifureta-nee ! You're here!" Sakura cried out in delight. She dashed forward and leaped into Eriri's arms, wrapping her small hands tightly around Eriri's waist and nuzzling her face against her.

"Mhm, long time no see, Sakura. How have you been these past few days?" Arifureta asked with a smile, standing close to Eriri as she greeted the girl.

That morning, after washing up and changing into their school uniforms, Eriri and Arifureta hadn't gone to class. Instead, they had opened a portal and arrived directly in Rin and Sakura's shared room.

Eriri hadn't brought anyone else from home; this was a rare outing for just her and Arifureta to another world. When she made this decision last night, Arifureta was thrilled, wasting no time in slipping into Eriri's bed, where the two shared an intimate night filled with passion.

Though Sakura had known Eriri would come to their world today, she hadn't expected it to be a surprise visit. Eriri and Arifureta hadn't mentioned their arrival in the group chat, making it a sudden, but welcome, appearance.

"I've been doing well, and I've gotten stronger too." Over the past few days, Sakura had used her points intermittently, pushing her strength to the peak of Level 3. She was now just a step away from reaching Level 4, far surpassing Rin.

Since Rin wasn't a member of the chat group, her strength hadn't changed much over the past half month, and she remained at the early stages of Level 3.

Like Sakura, Rin couldn't help but smile when she saw Eriri again after more than half a month. She wanted to step forward, but hesitated for a moment, feeling a bit shy. It had been a while since she last saw Eriri, and she didn't know what to say.

Eriri gently patted Sakura's head, then waved at Rin by the window with a teasing smile.

"What's wrong, Rin? Don't you recognize me?"

Rin reflexively shouted, "Of course, I do!"

Realizing how loud she was, she blushed, smiling awkwardly.

"Eriri-nee, long time no see."

Rin finally took a few steps forward, standing in front of them. She glanced curiously at Arifureta, who was standing very close to Eriri, their arms nearly touching. It was clear from their body language that the two had an extraordinary relationship.

Sensing Rin's gaze, Arifureta greeted her with a smile.

"Rin… or should I say Little Rin? If Eriri calls you that, I'll follow her lead."

After speaking, Arifureta nodded and flashed a dazzling smile, her beauty so radiant it made Rin feel a bit dazed.

"Little Rin, nice to meet you. I'm Arifureta. You can call me Yue-chan or Arifureta-nee like Sakura does."

"Uh… hello, Arifureta-nee. I'm happy to meet you too," Rin stammered, feeling a bit awkward.

Even though both Rin and Sakura had undergone Eriri's body modifications and looked adorable, they were still children. No matter how cute they were, they couldn't match Arifureta's mature beauty.

Perhaps when they grew up, their beauty could rival Arifureta's. But surpassing her would be no easy feat.

Among the girls Eriri knew, Arifureta and Shinobu were the most stunning. Though still slightly below Eriri's own beauty, they came the closest. After them were the girls like Megumi Kato and Aoi Kujo, who had undergone body modifications by Eriri. Even someone like Lala or Jibril wasn't quite on their level.

Barring any surprises, grown-up Rin and Sakura would likely match Megumi Kato's beauty. In the vast multiverse, this was already considered top-tier beauty.

"You're adorable, Little Rin. You'll grow into quite the beauty one day," Arifureta said, patting Rin's head.

Rin, uncomfortable, shook her head, trying to escape Arifureta's hand. Her twin tails swayed with the motion.

Seeing Rin's resistance, Arifureta withdrew her hand, smiling as she watched Rin pout.

...

A dozen kilometers outside of Fuyuki City, in a desolate field, space began to warp and twist.

The next moment, the space shattered like glass, and a black void opened up. With a startled cry, a figure tumbled out in an awkward position.

"Ahhhh! I knew this would happen!"

The figure, a beautiful young girl, landed unceremoniously on her rear in the grass.

She was a cute girl of about fifteen or sixteen, with waist-length black hair. Her features were delicate—slender eyebrows, sapphire-blue eyes, porcelain skin, and pink lips. She had a slim waist and an attractive figure, though her chest was notably modest.

She wore a high school uniform, a black jacket with white trim over a white blouse, with a long red ribbon tied at the collar. Her pleated skirt, patterned with a grid design, reached just above her knees. Her legs were covered by black thigh-high socks, and she wore black loafers on her feet.

The only thing missing was a schoolbag, completing her look as a typical high school girl.

The girl rubbed her sore rear before standing up and brushing the grass and dust off her skirt, her face showing clear frustration.

"I knew it! Can't you just land me normally for once? Why does it always have to be like this?" she muttered to herself, as though talking to someone invisible.

"Luckily, no one's ever around when I land like this. Otherwise, I'd be beyond embarrassed."

"Yeah, yeah, I know. That's why I'm only talking to you when no one's around. Do you think I'd be crazy enough to talk to myself in public? That'd be so humiliating."

"So, where am I this time?"

"Huh? The Type-Moon world? And I'm right next to Fuyuki City? Oh boy… so, what's the timeline? Has the Fourth War happened? Has Sakura been adopted by the Matou family yet?"

"March 6, 1993? Phew, just in time—wait, hold on! Sakura's already five years old by now, right? System, quickly check if she's been adopted by the Matou family."

"What? She hasn't been adopted yet? Perfect, then I've got to stop that tragedy from happening. Isn't it a rule for travelers (transmigrators, reincarnators...) to kill bugs and save Sakura?"

The girl's lively voice continued, as if she were having a conversation with herself. Anyone watching might have thought she was suffering from delusions.

After a brief pause, the girl closed her eyes, and when she reopened them, she wore a satisfied smile.

Having picked her direction, she launched herself into the air, flying rapidly towards her destination.

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