Fate/Grand Order character introduced in Celeb Summer Experience!. She is an AI from an alternate timeline originally known as Last Slot acting as the admin of Moon Dubai. She ended up taking the appearance and personality of BB upon determining it to be optimal as an administrative AI. She hijacks the annual summer event to create the Archetype Inception Ordeal Call. She later fuses with BB Cosmo to create Golden BB.
As a servant, she makes up the first ascension of the servant, with BB Cosmo making up her second. Their third ascension is locked until players complete Archetype Inception.
