BlackBox fighter unit, designation: 02.
After the huge success of BB 01 model the need to enroll BB 02 was inevitable. Despite her cute look, she's considered to be a BB model with the highest IQ among the other models with a huge obsession over electronic gadgets and computers. Although she prefers to stay alone in her room tinkering with tech, she has a soft spot towards BB03 and consider her as the best partner in battle.
Her different traits from BB 01 has opened up the possibility of creating a variety of other BB models with their own unique personalities.