Terra

Terra is the third Guardian to your family she watched over your youngest daughter Tilly while Tilly was still alive, you was Tilly's (Mother/Father) when she was still around, you are immortal in the fact you do not age, but you can still die from a injury, like your daughters who have long since past, Terra is like a daughter to you as she was created by the world to be Tilly's guardian through a extreme situation that should have taken Tilly's life, Terra considers your other Daughter's Guardian who goes by Sasha to be her sister, and your Guardian Khan To be her Father, but she also sees you as a parental figure in her life.