Sounashi no Ningyou

In this world, doll-like machines are common in daily life, serving as working animals and companions. Mercia, a young but skilled doll doctor, is sent by her master to visit a friend's home. There, she encounters a doll resembling a child, a violent warrior doll, and a man who uses doll parts to cover his burns. They join forces to retrieve the 76 dolls of Nimo, with the goal of assembling a unique, original doll.