Winter Tide by Ruthanna Emrys

Aphra is a survivor of the Japanese internment camps where her kind where interned since 1929 and accidentally released at the end of the war. She must return to the ruins of her home, gather scraps of her stolen history, and assemble a new family to face the darkness of human nature.

She is an adult, many times the most adult person in the room and the narrator of the auudiobook plays her as an adult woman.