Hiroware Aishite Houshi Shitai ~Ajin Musume to no Ichaero Seikatsu~ The Motion Anime

"Demi-humans" in this world are considered trash and among the various races have the lowest status. Mia was just from the "half-human" race and lived with her mother in a remote village. One day they are kidnapped and taken to a slave trader. Mother bargains for Mia's freedom and gives her a photograph and the address of her father...