Bit is a young woman, with short red hair, and light blue earrings. She wears a black leotard, a red bow around her neck, and white rabbit ears on her head.
Not much is known about Bit's personality. She seemed pleasant and helpful when she explained the Turtle Car Race to Nami, but she likely felt the same grief of being under Gild Tesoro's control as the rest of the island's inhabitants.
One Piece Film: Gold
After the Straw Hat Pirates let sea water into Gran Tesoro, Bit was freed from Tesoro's control, as the king's gold dust was washed away. It can be assumed that she fled from the island after his defeat.