The world of Type-Moon starts with saving Altria!

You have to know that BB is a super AI that came to Chaldea in response to Sakura Toosaka's Holy Grail wish, and its "combat capability" in the virtual space can be said to have reached the extreme.

Here, she can easily reproduce the sword of promised victory (Excalibur), the arrow of complaint (Phoebus Catastrophe), and the spear of death (Gae Bolg Alternative).

Now that even she says she can't break through... you can imagine how strong this blockade is.

And compared to this, Ian cares more about who can set up this level of defense.

Chaldea... is there any secret that I don't know about?

Thinking of this, the man became more worried.

Under the influence of this kind of thinking, he soon came up with new ideas.

"bb."

"Hmm?" Feeling that Ian's tone seemed to have subtly changed, BB's way of speaking also became serious.

"Is there anything you want to do?"

"Yes." The man nodded, "I... want to go back there and take a look."

"Eh?"

Ian's answer surprised and shocked BB.

"you!"

"The baby has become like this - how dare you, a pig, go back to check it out? Aren't you afraid of something going wrong?!"

"It's because you've become like this that I want to go back and take a look." Ian said seriously.

"otherwise--"

"If everyone gets hurt later because of this existence that even you can't break through, won't the problem be even more serious?"

"This……"

bb looked at the man in front of her and understood what he was feeling at the moment.

"After all, you still want to protect them?"

"Isn't this natural?" Ian answered without hesitation, "If I can't protect my girlfriends myself, who else can I rely on to protect them?"

"..."

Listening to this extremely correct but at the same time very mean speech, BB really had no way to refute anything for a moment.

As a super AI, she also sorted out her own logic.

Faced with Ian's request, there are only two choices.

Either agree or refuse;

Obviously, whether he agreed or refused, Ian would definitely choose to go back and take a look.

BB's eyes fell on the man in front of him.

So--

For his safety, I have to follow him, right?

"Alas." BB sighed, "I always feel that sooner or later, you pig will be killed by a woman."

"Let's talk about it later." Ian said with a smile, "BB, come with me, I need your explanation?"

"Of course——~☆" bb supported his waist with both hands, looking very imposing.

"I can't just sign a contract with you and then watch you, a pig, die in vain, can I?"

"That's fine." Ian was no longer vague, "Then let's go now!"

"Hmm~☆"

With the idea of ​​wanting to protect each and every one of them, Ian and BB once again returned to the virtual data space of Chaldea.

Although it was pitch black here, BB could see everything clearly as if he had X-ray vision.

In this kind of space, she is almost invincible.

"Pig, this way!"

"it is good."

Following BB's guidance, Ian and her walked forward and soon arrived at their destination.

only--

The moment he saw the scene before him, Ian couldn't help but feel a little emotional.

In front of the man and the girl was an endless gate.

This is truly boundless.

Ian looked around, but couldn't see where the door extended to.

It so rudely and unreasonably blocked anyone who wanted to enter, and forcibly divided the space into two parts: inside and outside the door.

In a sense, this is more like a "wall" - a wall of sighs that makes people retreat just by looking at it.

"This……"

Ian, who couldn't understand what was going on, could only ask BB for help.

"Why is there such a door in Chaldea's space?"

"This isn't actually a door." BB explained the reason, "It's essentially a very complicated magic spell."

"It's just that the considerate BB has materialized a little so that you can feel it~☆"

"Magic formula?"

Ian noticed a very familiar word in BB's words.

"BB, isn't this a statistic but a magic trick?"

"should be."

BB stared at the wall in front of him that gave him a headache.

"If it was just data or something, BB would have been able to break through it in one go - but now it seems that this is obviously not the case."

"..."

Ian finally understood why BB, who was almost invincible in the virtual space, was stopped.

Because what blocked her was not Chaldea's defense, but a magic spell that shouldn't be in this kind of space.

She can handle data, but she can't handle magic!

But why do we need to set up such a protection mechanism?

Ian couldn't figure it out—he had to get closer.

"BB, I want to get closer to it."

"..." BB hesitated for a moment, then sighed and said, "Okay, go ahead."

"You didn't stop me?"

"I can't stop you~" BB hugged her chest helplessly, "No one can stop you from doing what you are determined to do, right?"

"Indeed." The man did not deny BB's statement.

"Go ahead." BB replied, "But let me make this clear, if I feel something is wrong, I will pull you away immediately."

"Well, I see."

With BB's promise of "safety", Ian began to actively touch the "door" in front of him.

Not surprisingly, the man found that he couldn't push it away at all.

This is a matter of course. After all, even a being like BB cannot surpass it, so it is even more impossible for me to do so.

but--

Failure to push it away does not mean nothing.

On the premise that BB confirmed that this was a magic ritual, Ian felt familiar with it on this basis.

Perhaps I have seen it somewhere before.

No, it might be more than that.

The follow-up procedure is even the same!

Feeling that something was not right with the man's expression, BB patted him on the shoulder.

"Hey, what's wrong with you? Why do you suddenly have this expression?"

"Is there something wrong?"

"..."

Knowing that BB has become his own exclusive AI, Ian has no intention of hiding anything from her.

He told the little devil what had happened.

of course.

Ian's expression only went so far as to show that he was somewhat familiar with it.

After all, he couldn't express the deeper feelings.

"This..." BB was very confused after listening to Ian's story.

"Do you feel a sense of familiarity?"

"Yeah." Ian nodded, "Maybe it was set up by someone we had met before."

"Then can you solve it?" BB asked.

"No." Ian shook his head in denial, "If you can't do it, then of course I can't do it either."

"..."

BB's expression was a little nervous.

"That--"

"If you say so, doesn't that mean there is someone more powerful than you who has locked up something about you using a very powerful spell?"

"This is a dangerous situation no matter how you think about it, right?"

"As expected of a super AI, it reacted immediately." Ian praised the BB in front of him, "Yes... that's the seriousness of the problem."

"We have to find out who left this thing behind."

"bb."

The man took the hand of the girl next to him.

"I hope that in the next period of time, you can continue to investigate Chaldea's virtual network for me like an investigator and find more information."

"Of course, all this must be done while ensuring your own safety, and at the same time, do not disclose this matter to anyone else."

"May I?"

"..."

Suddenly being asked so seriously by the man, BB felt a little embarrassed.

But she nodded:

"I see."

"I'll do as you say - but if I'm alone, will I..."

"Don't worry." Ian looked at the door in front of him, and the answer was in his eyes.

"I'll go talk to the director."

"This Chaldea is hers...she will know something more or less."

"okay."

After reaching a consensus with BB, Ian quickly demonstrated his seriousness as the leader of Chaldea.

[Director, please come to the office tonight.]