The moment BB finished speaking, everyone's eyes collectively turned to her. The first to speak, naturally, was Da Vinci. "Um—though it might be rude to ask, can you truly do it?" she questioned. She wasn't doubting the existence of Servants more powerful than herself who could directly repair the Rayshift system. However, something about BB gave Da Vinci an indescribable feeling of unease. If she had to describe it, her first impression was that BB seemed to transcend the concept of a Servant. Yet, Da Vinci would never voice this directly, as it would be tantamount to questioning Ian's actions, and she was unwilling to create conflict with such an excellent leader.
"Indeed," Modred added, her tone becoming more considerate after spending some time living together. "BB... can you really do it?"
"Hey!" BB put her hands on her hips, looking displeased at Da Vinci and Modred. "What do you mean by that? Do you all think I can't do it? BB feels unpleasantly underestimated!" she exclaimed. "Don't you know BB is..." Halfway through her sentence, BB swallowed her words. She hadn't forgotten that Ian had assigned her the role of a Servant, and she needed to play it seriously.
"..." Noticing BB's sudden silence, Ian quickly guessed the reason. He reached out and gently stroked her head. "It's alright, I believe in you," he reassured her. "BB, go ahead and do it without worry."
"..." Frankly, BB hadn't expected him to speak up for her at that moment. But—this feeling of being defended was genuinely nice.
"I see," Da Vinci nodded. "I understand—if Ian thinks it's possible, then I have no objections."
"Mm... indeed," Modred said. She never opposed her father's opinions. "Then let's try it first."
"It seems we're all in agreement," Ian's gaze returned to BB. "So now it's your time to prove yourself."
"..." BB shook her head, returning to her usual demeanor. "Understood~!" she chirped. "BB will definitely fix that 'Rayshift system' to prove herself~☆"
BB's Restoration
Ten minutes later. Ian, BB, and Modred arrived at a section of Chaldea. This was the epicenter of the explosion, the most severely damaged part of Chaldea, and also where the core of the Rayshift system was located.
"Modred," Ian began, "Why isn't Da Vinci coming along?"
"She probably trusts your judgment completely, Master—she's been consistently following your previous instructions," Modred replied.
"Then why are you coming along?" he asked.
"Well..." Modred shuffled closer to Ian, slowly moving towards him. She then took his left hand and whispered, "I... I just want to be with Master."
"..." With that said, Ian's frustration completely vanished. He allowed Modred to link her arm with his, even letting her rest her head on his shoulder. Witnessing this, BB's expression became somewhat complex. A hint of subtle jealousy flickered in her eyes.
They walked for a good while, and finally, Ian stopped with Modred at a place with exposed wiring. The man turned his head to look at BB, who was pouting. "Here... is this okay?"
"..." Realizing she needed to perform well in front of Ian, BB patted her cheeks, then quickly walked to his side. "It should be fine."
"Alright then," Ian said, moving a few steps aside with Modred to give BB enough space. "BB, I'm counting on you for everything."
"Mm, just watch BB~☆" the girl responded. She then began to search for a suitable entry point within the exposed circuits, and as the Super AI she was, she quickly found an excellent spot, pouring her consciousness into it. Of course, no one apart from Ian knew what BB was doing. In Modred's eyes at that moment, this "Servant" seemed to have simply frozen in place. This made her a little worried.
"Master... BB should be fine, right?" she asked. "She seems to have been standing there for a while—do we really not need to help her?"
"No need," Ian said, gently stroking Modred's hair to soothe her kind, worried heart. "Trust BB... she'll definitely do what she said she would."
"Is that so..." Modred, having her head stroked, immediately became much more docile. This was a side of her only shown in front of her father, a completely different image from her usual self.
"Then—" Modred looked left and right, confirming that no one else would be able to hear her before carefully changing her address. "Father. Did you... really summon BB for this reason? I feel like there's more to it than that, isn't there?"
"..." Not surprisingly, his daughter had guessed something. Ian was silent for a moment, then asked again, "Modred, do you really want to know more?"
"Mm," Modred nodded. "I really do want to know... because it's closely related to you, Father!"
"Then—" Ian's gaze fell upon the motionless BB, and in his mind's eye, he vaguely saw the lingering image of Sakura Tohsaka. "If I'm to explain it clearly, it's actually related to your mothers as well."
"My mothers?" Modred blinked her beautiful green eyes. "Are you referring to the big mother or the little mother?" To Modred, Artoria, who raised her by the sacred lake, was a mother, and Morgan, who granted her the title of Knight of the Round Table in Camelot, was also a mother.
"Both are involved," Ian said, gripping Modred's hand tightly, as if holding onto some regret. "You can understand it as: it's precisely because of their existence—that BB was born."
"Eh?" Modred frowned slightly, looking even more confused. "I still don't quite understand. Father... can you explain it more simply?"
"Then understand it as my own atonement," the man said. "There was a very good girl who suffered unnecessary pain because of me. And BB is the materialization of that pain. I... I have to keep her."
"..." Modred still didn't understand. But she could feel that her usually resolute father was somewhat saddened by this issue—so she decided not to press further. She wasn't there to be his "black-hearted little cotton-padded jacket."
"Okay, I understand," Modred said, rubbing her cheek against Ian's arm, confessing her thoughts. "Father, if you ever have any problems in the future, please tell me immediately. I... I'll definitely do everything I can to help you!"
"Modred, you've matured quite a bit," Ian praised his daughter, feeling a little better inside.
A Sudden Turn
However, just then—something unexpected happened. The nearby lights began to flicker, looking like a scene from a horror movie.
"W-what's wrong?!" Modred became a little nervous. She immediately drew her Clarent, entering a state of high alert. She might not be as powerful as her father, but her desire to protect him would never waver. What Modred didn't know, however, was that Ian was currently worried about something else entirely. That was that BB might be in trouble. This wasn't a joke. Ian had witnessed BB's miraculous abilities. Combined with the records Olga Marie had previously mentioned—this phenomenon only occurred when she was agitated. After all, her true form was a Super AI, and the channels for expressing emotions were naturally things an AI could access.
The man's premonition quickly became reality. After the lights flickered for a few seconds, BB's eyes regained their luster, an indication of her consciousness returning. But—unlike her initial confident demeanor, she now appeared to have suffered a severe blow. She couldn't even maintain a basic standing posture, swaying unsteadily and on the verge of collapsing backward!
Modred was still on alert, wondering what had happened, when Ian rushed forward, scooping BB up in his arms. "Modred, go find Dr. Roman quickly!"
Although she hadn't fully processed what was going on, the moment she heard her father's command, Modred quickly nodded. She put away her Clarent. "I understand!"
The Special Contract
Ten minutes later. Ian and BB were alone in a room within Chaldea's medical bay. After examination with the available instruments, BB's condition was diagnosed as a lack of magical energy after being attacked. That's right. Although she was essentially a Super AI who appeared in response to Sakura Tohsaka's wish, because she was a product born from a strong connection with the "Holy Grail," the foundation of her existence was actually that of a rather special "Servant."
"Where is this..." BB's weak voice reached Ian's ears.
"BB!" the man held her hand. "What happened to you?"
"I..." BB seemed very eager to answer Ian's question, but due to the lack of magical energy, even speaking seemed difficult. There was nothing else for it. As a Master who had already summoned two Servants, Ian knew the best way to resolve a lack of magical energy. He directly began unbuttoning BB's clothes, his movements rough and hurried.
"What are you... doing?" BB said weakly.
"Do you even need to ask?" Ian pulled open the front of BB's clothes, exposing her to the same extent as their first ○ encounter. "BB, let's form a contract—become a Super AI who only obeys my commands."
"...Haven't I already?" she asked.
"No," Ian said, grabbing both of BB's hands and pushing himself directly in front of her. "That's not enough. You need to become my Servant, otherwise—you'll disappear right now. I won't allow that to happen, understand?" The man's breath was hot and incredibly close, stirring BB's heartstrings repeatedly. She felt herself becoming somewhat flustered.
"You pig... are you really going to do this?"
"Yes," Ian said, rubbing against BB's most sensitive spot without further explanation. "Agree quickly—and then just lie there. I'll take care of the rest."
"..." BB blushed and nodded. "BB understands—please form a contract with me. Become BB's Master." Saying this, the girl opened her core functions, confirming Ian as the person who could use all permissions without seeking her consent.
And so—a rather special Servant contract was born. To be precise, it wasn't a regular Servant summoning; it was simply due to the existence of the "Holy Grail" as a special vessel that Ian and BB adopted the form of a Servant summoning.
After feeling the magical energy transfer channel between himself and BB completely open, Ian once again displayed his wild side. While drawing from her impressive breasts, he repeatedly thrust his massive member into her core, making this mischievous demon AI do nothing but moan. Gulp, gulp. The man's Magecraft essence accumulated inside the girl's body, forming a mound-like lower abdomen, like spoils of war.
Who knew how long later? A recovered BB looked at Ian, who was panting heavily but still held her protectively in his arms, and a sense of warmth filled her heart.
"You... worked so hard," she commented.
"Was it good?" the man suddenly asked.
"Huh?" BB was stunned for a moment, then reacted. "You pig—!"
"Hey, hitting your Master isn't good behavior," Ian said, grabbing both of BB's hands and meeting her gaze.
"..."
"..."
They just looked at each other, then both laughed, their lips slowly approaching and then separating.
"You're finally alright," Ian said, looking at the girl beneath him, relieved. "If you can't do it—there's no need to force yourself. Look how dishevelled you are now."
"Huh?!" At this, BB immediately became anxious. "But BB has already repaired that system! Now—it allows you and that girl named Fujimaru Ritsuka to be transferred out together! Don't underestimate BB, a Super AI, okay?"
"This..." Realizing that the situation seemed different from what he had thought, Ian quickly followed up with a question: "Then—what did you encounter that made you like this?"
"About that..." BB looked at Ian, who had truly become her Master, and decided not to hide anything anymore. "Actually—BB saw secret files about you in Chaldea's system."
"What?!"