Matou Mansion!
The night was deep. Sakura had already fallen asleep.
"So, by 'together forever', you mean becoming a Devil?"
Medusa looked at Ayato, her expression strange. "Can that be done?"
After all, she had only been granted memories of modern knowledge.
"I'm not sure either. This is a newly developed technology."
Ayato shook his head. "Whether it works on a Servant is still unknown."
"Then let's try. What do I do?"
Ayato took out a Knight piece. "Put it into your body."
Artoria, who was eating a bento on the side, widened her eyes.
'Was this... proper?'
'How was she supposed to put that piece in?'
Just thinking about it made her feel... tight down there.
Medusa's lip twitched. "Are you serious?"
"Of course. That's the procedure."
"Gulp."
Medusa swallowed, her eyelashes trembling slightly.
After a moment, she finally made up her mind, placed her hands on her lower garments, and was about to pull.
"Take off your outer clothes first."
"..."
Medusa's movements froze as she stared blankly at Ayato.
Ayato: "..."
'Whoops. Spoke too fast!'
'But this woman was very action-oriented.'
Looking at Ayato reproachfully, Medusa breathed a sigh of relief.
Outer clothes, while still embarrassing, were much better than before.
Then,
Medusa removed her outer clothes, leaving only her undergarments.
Because she moved a bit suddenly, her two round breasts bounced slightly.
Ayato maintained a serious expression as he pressed the Evil Piece down.
"Mmmpphh..."
Medusa's body trembled, her face slightly flushed.
Even though there was a piece in between,
Being touched like this by a man... was a first for her.
"It seems everything is going smoothly."
Seeing the magic circle appear beneath Medusa, Ayato smiled with satisfaction.
Instinctively, he looked toward Artoria.
"What are you looking at me for?"
Artoria's ahoge swayed as she warned, "Don't get any bad ideas."
"I'm hurt. I was just preparing to give you a choice."
Ayato said seriously. "As you can see, Medusa has reincarnated as a Devil and is no longer connected to this Holy Grail War."
"If you are willing, I can do my utmost to help you achieve victory and ultimately let you make a wish upon the Holy Grail."
"You would be that generous?"
Artoria asked suspiciously. "It's a wish-granting machine, after all."
"Of course!"
Ayato casually said. "I am a Devil. I have a strong sense of contract."
After all, that Holy Grail or whatever had long been corrupted. Getting it would be useless.
It was much more worthwhile to obtain Artoria.
As for her discovering the truth later... he hadn't lied, after all.
'Contract sense?'
Artoria's eyelid twitched as she gazed at Ayato.
'A Devil saying something like that...'
'Could he really be trusted?'
"If you don't believe me, you can wait until I fulfill my promise before carrying out your end."
Ayato said lightly. "I trust you, you know."
Hearing this, Artoria blushed.
'As a king, how could I be so lacking in magnanimity?'
'Even worse than a Devil?'
She said firmly, "Alright. It's a deal."
If she could really have her wish granted, what did it matter if she made a deal with a Devil?
"Then you understand the price, right?"
"It should be becoming your servant, correct?"
Artoria's expression was calm. "As long as you fulfill your promise, Master, you can take this body as you wish."
"Excellent!"
Hearing this, Ayato smiled.
Meanwhile, Medusa was drenched in sweat.
At first, she could still hear their conversation.
Now, she could only hear the thumping of her heart.
She felt that as the Evil Piece entered her body, she was truly beginning to possess a physical form.
"This feeling is..."
Suddenly, she bit her lip lightly as the skin on her back writhed.
"Mmph!"
With a low grunt, a pair of Devil wings burst from her back.
A small tail, incongruously petite compared to her tall frame, slowly emerged.
"Hehe, so cute!"
Looking at her tail, Medusa's eyes sparkled.
Ayato: "..."
'This woman's aesthetic sense... was impossible to understand.'
'She had a body that was outrageously good,'
'Yet she insisted that petite and cute was true beauty.'
Even as he inwardly complained, this Medusa was very appealing.
Feeling Ayato's gaze, Medusa's pretty face flushed, and she quickly tucked away her tail.
"You don't have to put it away."
Ayato smiled. "By the way, have your abilities or Noble Phantasms been affected?"
"No!"
Medusa stood up, assessed her condition, and showed a radiant smile. "Rather, I've never felt better."
Having a physical body...
Felt completely different from before.