_The concept of family is a rather superfluous one for the Robots, a lingering remnant of times long gone._
_On occasion, Robots produced around the same time who tend to stick around one another can begin to consider themselves as family, though cases of later additions to such a "family" are not unheard of._
_The first documented case of this phenomenon is with these two: Cascadia (S-26) and Navi (S-27). Being among the oldest of the robots, they have long considered themselves to be "sisters", and have effectively become the standard that other Robot "families" follow._