Puppet Child? I Raised Your Grandpa

A century ago, alchemist Ryan Wright built Alice, a girl-shaped puppet knight who battled dragons and sealed away a sea monster. After she raised an orphan named Damien, she disappeared without a trace. Now a hundred years have passed, and Damien is dying with one wish left: to see her once more. Alice comes back exactly as she was, a child who never grew older, to find the Wright family torn apart by rebellion, betrayal, and a descendant of Ryan's who wants her core to build an army of puppets.