"Make Ian Sakura Tohsaka's lover." This was the goal Rin Tohsaka realized from her mother Aoi Zenjou's words.
However, the crucial point was that Rin Tohsaka didn't actually know how to achieve this seemingly simple goal normally.
Furthermore, honestly speaking, time also didn't allow Sakura Tohsaka and Ian to slowly cultivate their feelings to that extent.
So—
Only some relatively radical methods could be employed.
Coincidentally.
Among the magecraft knowledge Rin Tohsaka had learned, there indeed existed a practice that could allow a Master and Servant to achieve a "lover-like" relationship. Its name was Mana Transfer.
In the Holy Grail War, Servants and Masters were essentially to be regarded as a single entity. After all, if either side was too weak, the chances of victory would be drastically reduced.
But weak Masters always existed—they couldn't even maintain a normal supply of magical energy. In such times, Servants would need to find additional ways to replenish their mana.
Some Servants would eat; others would choose to sleep; but if speed and effect were truly considered, then the sexual act between opposite-sex Masters and Servants was the most reliable.
After all, this was equivalent to allowing the Servant to directly connect to the Master's Magic Circuits for "charging." In this situation, mana replenishment was naturally incredibly fast.
Of course—
To achieve this effect, the prerequisite was that both parties were willing.
If one party refused such an act, it would immediately escalate into a confrontation between Master and Servant.
That being said, combinations performing such acts were always a minority—after all, Servants were heroes from various eras in their past lives, so they wouldn't easily agree to such things.
As for Sakura Tohsaka, her exceptionally superior magical aptitude could perfectly supply mana, making such a thing seem unnecessary.
But—
Does "unnecessary" mean it can't be done?
Of course not.
Rin Tohsaka knew this was merely an excuse—the two needed a legitimate reason for intimate contact. She believed that if there was truly a possibility between Ian and her sister, then such a thing would happen sooner or later, merely delayed. Now, she was just nudging things along, lighting a small fire.
Furthermore—
Even her own mother, Aoi Zenjou, had this inclination, so Rin Tohsaka naturally felt even more justified.
[You don't understand what Sakura Tohsaka means by "mana transfer."]
[But your instincts tell you it's definitely not as pure as it sounds on the surface.]
[You are caught in a dilemma.]
With a tiny bit of hope, Ian, with his eyes closed, quietly asked his Master:
"Sakura."
"What do you mean by that...?"
"What is 'mana transfer'?"
"It's—"
The extremely shy Sakura Tohsaka looked at her sister on the bed, momentarily at a loss. She certainly wasn't averse to intimate acts with Ian. But asking her to explain that it was sexual activity in detail to him was absolutely impossible.
After all—
This was truly not something easy to say out loud; just sitting on Ian's lap had already used up all her courage.
Seeing her sister unable to speak, Rin Tohsaka grew a little anxious. As an uninvolved party, she couldn't stand it any longer and directly became the "battle supervisor."
"Ian!"
"Sakura is being so proactive... don't you understand what she wants to do?"
"Playing dumb is very annoying!"
"Eh?!"
Seeing her sister "stepping in," Sakura Tohsaka initially wanted to stop her. But the young woman quickly found that she approved of Rin Tohsaka far more than she had imagined. Her hand, which had wanted to stop, paused.
"..."
The knight, still with eyes closed, replied again. "Of course, I understand what Sakura means."
"It's just—"
Ian's tone carried a hint of concern. It was a genuine tone, from the heart, thinking from Sakura Tohasaka's perspective.
"I think Sakura should choose carefully."
"After all, some things... if done, cannot be undone."
Sakura's chest was soft and substantial; this was an undeniable fact. Being so actively close to him was an act that made one's blood rush.
However—
As the "Ghost" who had accompanied her for over a decade. Ian wasn't at the point where a little impulse would make him disregard everything. He knew some of her character flaws and feared she would be hurt because of this. This was a harm the knight wanted to avoid at all costs.
[These are your true thoughts.]
[You have quite complex feelings for Sakura Tohsaka.]
[You decide to remain silent for a while, giving Sakura Tohsaka time to think clearly.]
[Regardless of the outcome, you will accept it calmly.]
"..."
Now it was Rin Tohsaka's turn to be silent. She realized that this incredibly charismatic man also possessed terrifying self-control.
No.
Perhaps it should be said, the resolve to protect Sakura Tohsaka. After all, her sister was being so proactive, yet he could still restrain himself; this was absolutely not something an ordinary person could do.
Damn it!
Is this what a Saber-class Servant is like?!
Why wasn't it me who summoned him?!
Rin Tohsaka was still sulking, but Sakura Tohsaka had a new reaction. Her face was incredibly shy, but her tone was remarkably firm.
"Yes, I have already made up my mind."
The young woman held her two hands, placed on her chest, that belonged to Ian. "Mr. Ian... please do not doubt my resolve."
"Since I can sit here, it means I have thought everything through."
"No matter what happens later—"
"At least at this moment, I am willing."
"..."
Hearing this, Rin Tohsaka realized that she had not only underestimated Ian's desire to protect Sakura Tohsaka.
She had also underestimated Sakura Tohsaka's resolve in agreeing to such a thing. It was a steadfastness that, once the action began, would absolutely not stop, no matter what obstacles arose.
Thinking this way—
It truly was deserved that her sister had summoned Ian. After all, if it were her, she probably would have retreated immediately after being questioned by Ian like that.
No.
She probably wouldn't have even sat on him in the first place. After all, he was a Servant; there would still be some reservations.
[You understood Sakura Tohsaka's determination.]
[You realized she needed your response at this moment.]
[You are certainly not the hesitant type.]
[Since your Master has this need—then it is only right to fulfill her wish.]
[This is the principle you wish to uphold.]
[And you will carry it out to the end.]
"Then—"
"Sakura, can I open my eyes?" Ian asked.
"Mm~" The young woman's voice was gentle and melodious.
The knight opened his eyes, and what greeted him was the utterly unadorned body of his Master. It was a figure like a pear—narrow shoulders, slender waist, wide hips, and full thighs. Although it looked somewhat soft, it didn't feel overly cumbersome. Coupled with Sakura Tohsaka's extreme shyness, it was a magnificent "pear-appreciation" scene.
"Mr. Ian."
Sakura Tohsaka gazed at him. Although she felt truly ashamed, the young woman did not try to conceal anything, wanting him to appreciate her as much as possible. She met Ian's gaze and asked a question that greatly concerned her.
"Do I... meet your expectations?"
"..."
Ian did not answer the question directly. Instead, under Sakura Tohsaka's gaze, he gently kissed her forehead. "You've grown up."
Feeling the atmosphere becoming increasingly ambiguous, Rin Tohsaka knew it was time for her to exit.
"Then—"
"You two carry on, I'll be going."
"Wait a moment." Sakura Tohsaka turned her head, calling back Rin Tohsaka, who was about to leave. "Sister, can you not leave?"
"Huh?" Rin Tohsaka paused. "I can... but wouldn't it be awkward if I stayed?"
"Aren't you two going to..."
Hearing this, Sakura Tohsaka shook her head. "It's fine."
"Sister gave me such a good idea... I also want to share this joy with my sister."
"..."
Rin Tohsaka frowned, then slowly relaxed. She had initially thought her sister was trying to show off. But seeing the cautious look in her eyes, Rin Tohsaka suddenly realized she had been petty. Sakura Tohsaka truly didn't have many ulterior motives—she just wanted to thank Rin for giving her advice.
But this way of thanking was too unique!
However—
Rin Tohsaka's lips curved slightly upwards. Although it was a bit strange, it was genuine.
If I do this... then I've fulfilled some of my duties as an older sister, right?
Hmm, mission accomplished!
Convincing herself, Rin Tohsaka nodded. "Alright."
"Since you've put it that way—"
"Then I'll stay."
"Then—" Sakura Tohsaka asked the knight for his opinion. "Mr. Ian, would you mind?"
"Of course not," Ian gently stroked the young woman's head. "Since you want Rin to stay, of course I have no reason to refuse, do I?"
"Mm~"
Hearing his reply, Sakura Tohsaka's face blossomed into a happy smile.
However—
Although Rin Tohsaka had stayed, accepting her sister Sakura Tohsaka's kind offer, she quickly realized this was the biggest mistake she had ever made.
Because—
This Master and Servant pair were truly going all out!
Rin Tohsaka, sitting on the other side of the bed, covered her face with her hands, secretly peeking through her fingers at the intimate activities happening beside her. Her pupils reflected the incredibly stimulating scene, her mind filled only with a buzzing sound and the replay of actions that, if written directly into a novel, would surely cause the chapter to fail review.
This kind of kissing would suffocate someone, wouldn't it! Stop it quickly! Phew... it finally stopped. Wait, why are they sticking together again?! Hey—! They're both blushing!
This... is this the legendary "face wash"?! But Sakura seems to be enjoying it a lot. Is it because her chest is too big? It shouldn't be, right?! Tsk... I don't have a chance to verify if that's really the reason.
Hiss— So Sakura can make sounds like that? It sounds very pleasurable. But it's probably not that strange. After all, she said she was willing, so now that the two of them are intertwined, it could be considered a perfect way to fulfill their desires, right? But it really looks so exaggerated... What would it feel like if something that size actually went inside? Excruciating pain? Or very comfortable? It should be the latter... After all, Sakura kept saying things like "Mr. Ian, I'm so happy."
It's overflowing. A terrifying amount. The magical energy concentration feels very high.
[Your mana transfer ritual with Sakura Tohsaka is finally complete.]
[Your perfect intimate act caused this shy girl to fall asleep in bliss.]
[You realize that this day is finally coming to an end.]
Late night.
The Tohsaka sisters and the knight slept in the same bed. Ian was in the middle, while Rin Tohsaka and Sakura Tohsaka were on either side.
However—
Although the bed was large enough, Ian very discreetly maintained a certain distance. But Rin Tohsaka simply couldn't fall asleep. After all, the scenes she had just witnessed were simply too stimulating. For her, a virgin, it was like a hysterical sensation that she couldn't completely remove from her mind, no matter how she changed her sleeping position.
Fortunately, Rin Tohsaka was smart enough. After struggling for a while, she finally understood the problem—she was itching from excitement.
Yes.
It was such a simple physiological phenomenon tormenting the young woman. This was the first time she had encountered such a situation.
What should she do?
Rin Tohsaka certainly wouldn't choose to sit by and do nothing. She quickly thought of a way to relieve this symptom by imitating Ian's recent actions.
Of course.
This absolutely could not be discovered by Ian and her sister. After all, the future heir of the Tohsaka family was having thoughts of self-pleasure because she saw her sister enjoying herself too much. This would be a devastating blow to her image as an older sister.
Rin Tohsaka was still quite decisive—knowing how to solve the problem, she immediately took action. However, the young woman soon discovered that self-pleasure was a skilled art.
No feeling!
Absolutely no feeling!
No matter how much she imitated, she couldn't reach the state Ian had put Sakura Tohsaka in.
Why is this happening?
Just as Rin Tohsaka was puzzled, Ian's voice reached her.
"Do you need help?"
"..."
Rin Tohsaka dared not answer the question—she wanted to play dead. After all... this wasn't something to casually speak about!
But Ian seemed to have seen through her thoughts, quickly adding:
"Rin, if you keep this up... I won't be able to rest either."
"Sakura will wake up too."
"I have no other intentions, I just want to help you."
"Consider it today's thanks."
"..."