A world with no women except the android girls you're building: the premise is absurd enough that it earns the right to be earnest about it. The marionettes develop real feelings while the human cast fumbles around like idiots, and that contrast between mechanical precision and actual emotional chaos becomes the entire heart of the show. By episode 25, the ending pays off everything it set up, and you realize the whole thing was a love story disguised as a comedy about robot reproduction.

On a distant planet called Terra II, six male survivors of a malfunctioning colony ship have founded six nations and kept their numbers up through cloning and genetic engineering. With no women among them, they build lifelike female androids called Marionettes, designed to handle everyday chores and work while remaining emotionless machines. Everything changes when an ordinary boy named Otaru finds three dormant battle-model Marionettes and awakens them. Unlike the others, these three can feel, thanks to a special Maiden Circuit inside them. Otaru takes on the job of teaching them and helping their emotions grow, and when a neighboring country threatens to take over the world, he and his three Marionettes must defend their homeland. Mixing mecha action and adventure with comedy and drama, the series pairs its lighter moments with the story of machines learning to feel.