Buffy was a CLE-004 window cleaning droid operating on Coruscant. Together with the INS-444 unit known as Mick, this droid was assigned to replace the damaged bedroom window of Senator Padmé Amidala's apartment. The original window had been shattered as a result of the conflict between Zam Wesell's assassin droid and Obi-Wan Kenobi on the planet.