Beastkin Mother, Second Time as a Wife

Father brought home a pregnant beastwoman. They say she is the woman he loves, and the younger sister who was rumored to have been killed by Mother out of jealousy. Father wants to demote Mother to a concubine to humiliate her. Later, Mother breaks their blood pact and is no longer under his control, but he shamelessly begs her to come back. Mother smiles as she slices open the face of the woman he loves.