What is the robot's name in the song Kokoro which you can find on you tube?

I'm making a play that comes before this song and I need her name so my actors know what to call her. Please help. If you havn't heard the song, click here. a href="http://www.youtube.com/watch?v=Cw_7JTMIQm8" rel="nofollow"http://www.youtube.com/watch?v=Cw_7JTMIQ…/a