BB/GO is an Advanced AI salvaged from Kiara Sessyoin's body upon turning Seraphix into a copy of SE.RA.PH. She is a MoonCancer-class Servant.
Profile[]
Background[]
Upon replicating her body that was obtained in the Moon Cell, Kiara was able to extract BB, Passionlip, and Meltryllis who she had absorbed to obtain that body. After the copy of BB was sent from the Moon Cell to stop Kiara, the extracted BB took to calling herself "BB/GO". She made a deal with the Moon Cell BB to stay out of the way while BB took over running SE.RA.PH, but plotted to take it over for herself after Kiara was killed.
Appearance[]
BB/GO is identical to BB, however, her eyes are red and have no pupils. However, they revert to how they normally appear for BB when BB/GO gets flustered.
Personality[]
BB/GO is superficially identical to BB in terms of personality at first glance, but she is far more callous and contemptuous of humanity than BB; the latter believes this to be a sign that she was tainted by Kiara's nature as a Beast when she was extracted. She declares herself to be inherently superior to humans and therefore the only one suited to rule over them, a concept that BB sees as ridiculous.
Role[]
Fate/Grand Order[]
After the defeat of Beast III/R, BB/GO plans to have the digitized SE.RA.PH settle underwater and patch it into the Internet where it can hijack factories to mass produce BBB robots. These robots will then imprison humanity, converting them into bio-processors that can be linked to SE.RA.PH. Thus enslaved, humanity will be forced to spend the rest of its existence worshipping BB/GO.
BB convinces Ritsuka Fujimaru to help her put an end to her other self's plot. However, BB/GO has also forced Nero, Nameless, and Tamamo-no-Mae to act as her Sentinels in order to stymie their progress.
When BB and Ritsuka reach BB/GO, she taunts them about their impending defeat and declares her intention to save humans from themselves by depriving them of their freedom. Having heard this, BB comes to the conclusion that BB/GO has become too human- the concept of hierarchy is a human one, and the fact that BB/GO considers herself superior to humans is proof that that she was attempting to become the sort of human that BB herself once dreamt of becoming. This only upsets BB/GO further, and she engages them in battle.
When BB/GO is defeated, she asks BB how it was that they could have been defeated by humans twice despite being perfect. BB responds with an explanation of how no AI can ever truly be more than what they are and that as they have nothing to worry about they can never create anything perfect; by contrast, suffering drives humans to create greater things in order to ease their suffering. Advanced AIs may be the product of that goal, but despite their superior abilities they cannot help but love their makers.
BB/GO says that she can no longer think that way since she knows of a more personal form of love, but she (as the original BB) let their beloved go to protect that love. Even so, she yields her Spirit Origin to BB, albeit with the warning that BB will end up just like her when she finds love of her own.
Abilities[]
BB/GO possesses all of the same abilities as the original BB.