After unlocking all CGs, a Type-Moon girlfriend comes knocking.

It's no wonder that when Aika Sajo invaded the Einzbern Castle it was late at night, and she didn't expect that she would be kidnapped in the middle of the night.

If it weren't for the Holy Maiden of Winter, Illya might still be trapped in that small magic workshop.

Alvin got up and turned on the heater beside him, then sat on the sofa and looked at the sleeping silver-haired girl. He soon found that she had obviously left in a hurry.

Because it was snowing heavily outside, Illya not only did not carry an umbrella, but she was even wearing a very homely white strapless nightgown. The heavy snow soaked her dress, and the fabric clung to her snow-white skin, revealing a unique charm.

The pair of small and delicate white feet under the skirt seemed to be a little blue from walking in the snow.

This is not possible...

Even though it's an artificial human, it still has a human body...

Alvin pondered for a moment, took off his black robe, and then reached out to carefully change Illya's clothes. While trying not to touch her skin as much as possible, he put the black robe on Illya.

Perhaps because she felt the warmth, or perhaps because of Alvin's movement, Illya frowned slightly and slowly opened her eyes.

What came into view was a young man with a good-looking face. He was squatting on his knees and looking at him.

"Are you awake?" Alvin smiled gently.

Illya subconsciously looked down at her clothes, then looked at Alvin in confusion.

If she were an ordinary girl, she might have made a scene or even questioned Alvin, but Illya didn't. She just stared at the servant in front of her.

"Saber...?" Illya spoke quickly.

Her voice is as clear and pleasant as the sound of jade being struck, revealing a simple and innocent feeling.

"You know me?" Alvin was a little surprised and asked, "What's your name?"

Since I had never met Illya before, I decided to ask her name to avoid raising any unnecessary suspicions.

"Ilia."

Illya's bright red eyes stared at Alvin as if she were looking at some rare animal, and she continued, "My mother said that the Servant she originally intended to summon was you... but for some reason, the one who came was another Servant."

There are two white dragons in Britain. Even if the holy relics are correct, the white dragon that can be summoned may be Vortigern... It all depends on fate.

Alvin had no previous disputes with the Einzbern family, and since there were too many masters intending to summon the White Dragon in this Holy Grail War, it was normal for Irisviel to fail in the end.

However, even Alvin hadn't expected that this Holy Grail War would involve everyone being a White Dragon fan...even the servants that the Einzbern family initially planned to summon were White Dragons.

Just as he thought of this, he suddenly noticed a hint of worry in Illya's eyes, as if she was hesitating about something.

"What's wrong?" Alvin asked with concern.

Illya opened her mouth slightly, but swallowed the words back with a hint of hesitation on her face.

Although her mother told her to follow the guidance of the 'Silver Thread' and come to find Saber...but the other party is still a hostile Servant after all, will he really be willing to help?

But before Illya could hesitate any further, a warm hand gently placed on her little hand.

Feeling the silver-haired girl's snow-white hands and the cool and soft touch, Alvin looked up and smiled.

"You just called me Saber... Does that mean you know about the Holy Grail War?"

"In that case, you should know that I am a hostile servant. Why did you come to me?"

Illya hesitated for a moment, then finally whispered, "Because of Sajo Aika..."

A look of expectation appeared on Alvin's face.

As expected... Is Irisviel's disappearance indeed related to Aige...

What does she want to do?

"Why did Irisviel ask you to come to me?" Alvin asked.

Illya shook her head slightly, her tone filled with confusion. She didn't know where to put her hands, "I don't know... Mom asked me to follow the silver thread to find you. I followed it all the way and unknowingly walked here."

It seems like Irisviel trusts me a lot...?

But that shouldn't be the case. Logically, she shouldn't know me. Isn't she afraid that Ai Ge and I are in cahoots?

When Alvin thought of this, his gaze quickly returned to Illya.

Perhaps because she had been walking all the way, her delicate little face, like a porcelain doll, showed a hint of fatigue. She lowered her eyes slightly, and seemed a little uneasy.

It was obvious that even though it was Irisviel's guidance, Illya didn't really trust Alvin.

After all, his master had kidnapped both mother and daughter not long ago... and now that she had finally escaped, she actually took the initiative to look for Alvin.

If Alvin wanted to do something bad at this moment, Illya would have no way of escaping on her own.

Even though you were scared, you still came to me on your own initiative... Alvin silently looked at the uneasy expression on the silver-haired girl's face, as well as her body shivering from the cold, and suddenly smiled.

"Where is your mother now? Tell me her location."

"Eh……?"

Illya suddenly raised her head as if in disbelief, and stared at Alvin blankly, seeming a little unbelievable.

Alvin smiled and said, "I'm also looking for Ai Ge's whereabouts... To be honest, I'm also curious about what she wants to do."

Clearly, with Aika Sajo's magic and Alvin's fighting prowess, the two were fully capable of winning the Holy Grail War... but, for some unknown reason, this Root Princess took the initiative to kidnap the 'Lesser Holy Grail'.

Although any action taken to seize the Holy Grail during the Holy Grail War was understandable, and Ai Ge did not harm any innocent people... Alvin was still full of confusion.

Illya hesitated for a moment, and then she spread out her right hand.

A soft white light emanated from the palm of his right hand.

In the halo, a silver thread quietly condensed.

The Silver Thread, Irisviel's magic, was secretly given 'life' by the Winter Saint, and then with the help of the Holy Grail 'cheating', it locked Alvin's location.

It is also based on the combination of these two that the silver thread can lead Illya to find Alvin.

"It will lead you to where my mother is."

As Illya spoke, she glanced at the boy cautiously again.

"Are you really going to help me?"

Alvin reached out and gently touched Illya's smooth silver hair, and said with a smile: "Of course, even if it is a reward for finding me after all the hard work... I won't let you down."

As soon as he finished speaking, Alvin saw a line of small words quietly appear in front of him.

[On a snowy night, your promise to the girl touched her heart and she imprinted you deep in her mind.]

[Completed CG achievement, Snow Under the Oath]

A CG illustration appeared in the field of vision along with text. In the dim hall, the boy knelt in front of the silver-haired girl, one hand gently placed on her head, his smile sunny and warm, giving people a particularly reassuring feeling.

Sure enough... Can Illya also complete the CG achievement?

Alvin wasn't surprised, but just looked at the achievement in front of him thoughtfully.

On the other side, the silver-haired loli looked at him half expectantly and half suspiciously, and whispered: "...Thank you."

For modern people, the weight of a thank you is obviously too light, after all, it is just a matter of saying it.

But while Illya was speaking, her beautiful red eyes were always fixed on Alvin, as if she wanted to imprint the boy's face in her mind.

The appearance of Sajo Aika was too powerful and too desperate for this young girl.

She didn't know how desperate the situation would be if she found Alvin tonight and was rejected by him, or if she was caught by Alvin.

But he entertained her without even asking about her identity, and after understanding the whole story, he readily agreed to ask for her favor.

On a snowy night, a girl came alone to seek help, and a boy remained calm...

It was like a ray of sunshine shining through the cracks in the darkness. Even many years later, whenever Illya recalled what happened tonight, she would feel an extremely unreal trance, so beautiful that it made her nostalgic - so much so that during the Fifth Holy Grail War, she tried every possible way, just hoping to see him again.

Alvin reached out and gently touched the silver thread. In an instant, the silver thread that was given "life" emitted an extremely soft halo, and then it floated straight towards the door.

Then, he looked back at Alvin, as if urging him to follow him.

"It's actually possible to make objects reach this level... Could this be the third magic that can materialize other people's souls and even make them immortal?" Alvin was secretly surprised.

Alvin quickly gathered his thoughts and said, "Illya, I'll follow Silver Thread over there first. You can stay here and rest tonight."

The silver-haired girl nodded obediently and said "hmm".

pat...

As the door closed, the hall fell into a brief silence again.

Illya sat alone in the dimness, her little hands subconsciously clutching the black robe draped over her shoulders, as if she could still feel that unique warmth from the black robe.

……

Late at night, the silver thread emitted a soft glow and quietly floated towards a certain direction on the street.

Alvin followed the silver thread on the snow, and at the same time, his thoughts began to become active.

As the 'omniscient and omnipotent' princess of the root, Aika Sajo can see her own life in advance, so she is obviously aware that she will be assassinated tonight.

That's why she chose to play along, first faking her own death to deceive everyone present at the time, and then taking this opportunity to kidnap Irisviel and her daughter.

As for the reason for the kidnapping... Irisviel is the 'Little Holy Grail', and Sajo Aika is obviously planning to do something with the Holy Grail.

But as the Princess of the Origin who has no desires, she has no wishes to fulfill at all. Why is she so eager for the Holy Grail now?

Thoughts flashed through Alvin's mind like fleeting glimpses, and soon he shook his head to dispel these messy thoughts.

Although the reason is not quite clear, what we need to do now is to find her as soon as possible and bring her back.

Alvin's intuition told him that if he let Aika Sajo do whatever she wanted, it might lead to irreparable consequences.

The silver thread passed through the dark alleys and streets, and Alvin followed it through the winter wood that had turned into a snowy city.

Soon, he crossed a bridge and arrived at the 'old town' of Fuyuki.

The three great families, including the Matou family and the Tōsaka family, are all located in this old city area.

I can't believe Ai Ge ran so far by herself...

Alvin sighed in his heart and followed the silver thread. After nearly an hour, he arrived near a port.

The whistling cold wind blew on his face. Although the servant was not afraid of the cold, Alvin couldn't help but sigh in his heart... It was amazing that Illya could walk for so long alone in such bad weather. If it were a normal person, she would have fainted in the snow long ago.

The silver thread quietly sneaked into an abandoned warehouse in the corner of the port.

There seemed to be a smell of dust floating in the air, and deep in the warehouse, there was a very hidden iron door.

If it weren't for the guidance of the silver thread, Alvin would never have imagined that there was such a secret door in the warehouse.