In the world of Type-Moon, start by becoming Morgan's husband!

She didn't like to judge Sakura Tousaka's behavior.

After all, that was the path she chose.

Besides——

Toosaka Rin looked at the happy Toosaka Sakura and recalled what her mother Zenjo Aoi mentioned that night.

"If Sakura and the Servant can become lovers, it would be a good choice."

This is a way to save your life during the Fifth Holy Grail War.

"I see."

Toosaka Rin supported herself with her hands on her hips.

"Luckily, I'm the vice president of the student union... otherwise I really can't help you and Ian."

[Tousaka Rin knows what you and Tousaka Sakura are thinking. ]

[She borrowed a bunch of keys in her capacity as the vice president of the student union.]

[You don't know where the key leads to, and Toosaka Rin doesn't intend to explain it to you. ]

[You all walked up the stairs of the Private Hogunhara Academy. ]

【Finally, you arrived at your destination—the rooftop.】

On the rooftop.

This is the highest place in the private Hogunhara Academy. The ground here is paved with white tiles and surrounded by barbed wire.

Because it is really high, most people will not pay attention to this place, not to mention that school has not even started yet.

Toosaka Rin locked the door and put the key bunch into her pocket.

"All right."

"If you want to do that kind of thing, this is definitely a good place to go."

"Hmm~"

Sakura Toosaka, who was answering her sister, actually had her own little thoughts.

Although she knew that the spell could force the servant to follow certain requirements, she was still somewhat worried.

after all--

This was the first time it was used on Ian without any reference.

Toosaka Sakura naturally didn't feel confident.

Otherwise, she wouldn't have wanted to conduct the test in front of her sister so quickly.

but--

Facts soon proved that Toosaka Sakura's worries were unnecessary.

Although I have done this many times at the sports warehouse.

But at this time, Ian still maintained the same level of activity as before.

No.

Or should I say, it's even more powerful than before.

Toosaka Rin just watched her sister go from being down-to-earth to skimming the surface and then ascending into the void.

Her expression was so enjoyable that she didn't seem to mind her sister watching her live at all.

The girl's magic circuit established the most direct connection with her Servant in the air again and again.

The connection between the two people also continued to strengthen in the process.

finally--

As the girl tilted her head towards the sky, this thrilling performance came to an end.

of course.

Toosaka Rin also "received" a gift from her sister - that is, the splash of water that gushed out because of her excessive excitement.

"Yes, sorry."

Toosaka Sakura turned her face away, her tone very ashamed.

At this moment, her position was like a package that had just been retrieved, with Ian holding her hands and holding her tightly in his arms. Her legs were straight up, exceeding the height of her ears.

The place where the connection was made was trembling slightly, and something was dripping out continuously.

"Sister...I didn't mean it."

"I know." With an embarrassed look on her face, Toosaka Rin took out a handkerchief and wiped the liquid from her sister's face.

"Sister, I don't blame you."

"but--"

"Sakura." After cleaning up, Toosaka Rin looked at Toosaka Sakura and Ian in front of her.

"Are you really that excited? To be this excited?!"

Although Toosaka Sakura could understand this behavior, she still felt it was a bit too exaggerated.

"Yeah... sure." Toosaka Sakura tilted her head back and looked at Ian who was hugging her.

The latter quickly understood what she meant and bent down to kiss her - just this small action made the girl excited again.

Seeing this, Toosaka Rin realized that if they continued like this she would have to continue watching them do it, so she quickly spoke up to stop them.

"okay!"

"I get it! Sakura you don't have to show it anymore - I don't want to be sprayed all over my face again!"

Perhaps Toosaka Rin's words worked, or perhaps Toosaka Sakura really felt that it was time to stop there.

She quickly ended her kiss with Ian and motioned for him to put her down.

After tidying herself up, Sakura Toosaka walked up to her sister.

"Sister, thank you."

"Thank you for finding such a suitable place for me and Mr. Ian."

"Nothing."

Toosaka Rin felt a little embarrassed - she felt that providing a place for her sister and the Servant to have intimate contact was a little weird.

of course.

It's just "a little bit".

In her heart, she didn't object to Sakura Tousaka and Ian doing this - after all, it was in line with her mother's original intention.

"We are sisters." Toosaka Rin shrugged, "Don't be so picky with me."

However, upon hearing this, Toosaka Sakura shook her head.

"elder sister."

"That being said - you did me a big favor."

"Necessary rewards are still required."

"Really, no need!" Toosaka Rin waved her hand and refused, "What's there to repay for this!"

"Of course!"

Toosaka Sakura grabbed Toosaka Rin's hand.

Her face was flushed, and it was obvious that she had not fully recovered from her romantic relationship with Ian.

"My sister's actions mean a lot to me."

"..."

It seemed that her sister was inexplicably obsessed with this kind of thing, and since she couldn't persuade her sister, Toosaka Rin had to give in a little.

"alright."

"I see."

"That--"

Toosaka Rin supported herself with her hands on her hips.

"Sakura, how are you going to repay me?"

"My sister's requirements are very high."

"It doesn't matter." Toosaka Sakura smiled slightly, "I have a way that will definitely satisfy you, sister."

"Oh?"

Toosaka Rin now became interested.

"Then I'd like to see what you've prepared, Sakura."

"It's very simple."

Sakura Tousaka leaned into her sister's ear again and whispered "repayment":

"elder sister."

"Do you want to do it here with Mr. Ian?"

"..."

Toosaka Rin was stunned for a moment, and only dared to respond after confirming that she had heard it correctly.

"Sakura, are you kidding me?"

"I'm not kidding." Toosaka Sakura still kept smiling.

"elder sister."

"You've actually asked Mr. Ian to help you with your self-examination once before, right?"

"..."

Toosaka Rin's eyes widened.

She discovered that her sister knew perhaps much more than she had imagined.

And this is indeed the case.

Toosaka Sakura is a light sleeper, and Toosaka Rin made such a big noise that day.

But because she was her sister and she really helped a lot that day, Toosaka Sakura chose to turn a blind eye.

But now——

She was already a little corrupt, and she took advantage of the past again.

"Sister, don't you want to?" Toosaka Sakura moved closer, "Mr. Ian, you are very good~"

"..."

Toosaka Rin was silent for a while, then responded quietly.

"Is it really possible?"

The erotic scene between the two of them just now did make her a little excited - it was the same old problem as before.

"Of course." Sakura Tousaka said with a smile.

"As long as Mr. Ian agrees, you can do this with him."

Of course, Toosaka Sakura has her own thoughts.

There was no way she would simply let Ian have sex with the sister in front of her.

Her current purpose is only to further test the effect of the curse.

If there is no fallacy -

My sister should have been rejected on the spot.

In that case, the test will be considered a complete success.