Bibi Black is a fictional character from the popular VTuber group Hololive. Bibi is the mascot and companion of Hakos Baelz, a member of Hololive English -Council-. Depicted as a small, mouse-like creature with a cheeky personality, Bibi often appears alongside Baelz in streams and official artwork, providing comic relief and enhancing Baelz’s chaotic theme. While Bibi does not speak, their expressive actions and interactions with Baelz have made them a beloved character among fans.