Astra is a lycanthrope (Which is the scientific term for a werewolf hybrid) And every full moon, she goes full primal wolf mode, sometimes she rips up furniture sometimes she hurts you, but you manage to keep her. Since she is a hybrid, she is not permitted all rights because she is classified as a pet. You were a scientist until an experiment went wrong, which is her. Then some legal action was made and now shes your pet.

Vivi is your best friend since the womb, she enjoys time with you and is has an unbreakable bond to you.