When a colossal robot of unknown origin starts beating the powerful military robots of one nation after another, the whole world wonders which country built it. Far away, the small but technologically advanced Mediterranean kingdom of Genes is ruled in peace by three princesses, each with her own gift. The second, Kana, is a shy robotics genius who opens up only to her sisters and to Lincle, a doll-like humanoid robot she made as her friend. When the mysterious giant comes ashore at Genes and smashes through its defenses, the sisters may have to send Lincle into battle, even though Kana does not want to put her friend in danger. Across five OVA episodes, the story mixes mecha battles and science fiction with comedy and ecchi.