|First Appearance||None yet.|
|Nickname||Three Nine, Sankyuu|
|Nationality||Japanese (technically none as robots are not considered citizens)|
39 is part of a series of robots built by Ishinomori and sent away before he was arrested. It is implied that she's somewhere in the same city as 42 but her exact whereabouts and condition are unknown.
Details on 39's programmed personality are not known at this time.