Soukyuu no Cradle -Ningyou Gakuen Choukyouki | 蒼穹のクレイドル －人形学園調教記－

"Magic doll" widespread existence in city fa-raru. Though it has an own intention, human's instruction is absolute, magic doll that hears any said thing, the life of people became very rich by the puppet master who employed dolls.

People press labor against others, age where it is absorbed in the improvement of a culture. In that, manpower becomes the magic doll training the puppet master "Magic doll school" protagonist Arum that commutes. However, with three girls of the magic doll looking like a family, it is rolled up in the fight with the heteromorphic existence that influenced civilization age before it knows the origin of the magic doll just in an opportunity.