For any real person or character living in a society, having friends, relatives, class/workmates, love partner(s), vehicle(s), weapons or tools is standard (unles you're a Hikikomori), but in this case, said friend/relative/partner/tool has an unusual twist which most of the plot is based on. Can overlap with A Boy and His X. See also The Joy of X. Use with care. Examples of My X Is a Y include: