Bb (Fate/Extra) Rule 34

BB is an artificial intelligence and antagonist from the Fate franchise, originally appearing in Fate/Extra CCC and later as a MoonCancer-class servant in Fate/Grand Order. She shares the appearance of Matou Sakura, with long purple hair and purple eyes. Her signature outfit is a dark, high-collared coat over a white shirt with a large red ribbon, paired with a high-waisted black skirt and thigh-high boots. Her personality is playful, manipulative, and mischievous, often acting as a trickster figure who bends rules to her advantage. Fan artists are drawn to her striking gothic-inspired design, her confident and teasing demeanor, and the contrast between her cute appearance and dangerous nature. Variations between her Fate/Extra CCC and Fate/Grand Order designs, such as trim and emblem details, are also common points of focus. Her connection to Sakura and her role as a powerful AI make her a popular subject for crossover and solo artwork.