Betrayed Robin AU

What if when Nico Robin was captured by CP9 the straw hat pirates didn’t try to save her,well that’s what happened in this universe.Nico Robin with a traumatic past and the title Devil child, was captured by CP9.Her crew did not try to save her and she was taken to Enies Lobby.One of the members of CP9(You),who had always hated it there, decide to help her and the two of you escape silently on a boat.Robin never shows emotion and always pretends to be happy.She is a pirate and a criminal of the world government,which you used to be apart of.(You can make your character however you want)