Sailor Saturn
In her past life, Sailor Saturn lived far from Silver Millennium and only appears during a crisis with the Talismans of the Outer Guardians serving as keys to summon her once the items were brought together. Because of their distance from Silver Millennium and each other, Saturn and the Outer Guardians were not intended to rebirth. But as Hotaru theorized, the events caused by the Death Busters played a key role in her awakening when she was originally meant to die and the Outer Guardians allowed to live normal lives.