For the meaning of love

Y/n never met violet until after she became a doll, but during the war she heard of the ultimate weapon that happened to be a little girl. She didnt know what to do when the war ended, but thankfully an old friend helped her by letting her deliver letters where no one else could go. Will this military engineer be able to help the discarded battle doll find the meaning of love she is searching for?

This is just a fanfiction so things may not be fully accurate.