‘Saber Marionette J’
Late in Earth Century due to overpopulation, efforts to colonization are made. However a mishap happens for a group of colonist early on for them in this story. This is a story of their legacy continuing their memories, living on a hostile planet of Pontais and Plasma with a relationship involving a love story that has gone wrong. Here in this world robots called Marionettes are used for fighting, completing menial labor and the replacement of the female population.
Descriptions taken from AniDB.net