

Shortly after this dream, Byleth-alongside their father Jeralt-are asked by three young students to help them repel some bandits. However, she quickly falls back asleep and the dream ends. By sheer coincidence, the two share the same birthday.

Sothis first appears before Byleth in a dream, asking for their name and birthdate. It's a pleasure doing business with you!" Being a compatible vessel for Sothis, Byleth would occasionally see her in their dreams while growing up.

Rhea was deeply distressed by Byleth's apparent death, and it would be 20 years before she would see Jeralt and Byleth again. However, before Rhea could take advantage of this miracle, Jeralt, having grown suspicious of Rhea as result of the death of his wife and Byleth's mysterious behavior and lack of a heartbeat, took advantage of a fire at the monastery to fake Byleth's death and disappear.

The extraordinary circumstances behind Byleth's conception lead to them being the perfect vessel for Sothis. The transplant revived the child, and Sitri died shortly after. Sitri, near death from childbirth, pleaded with Rhea to place the Crest Stone into her child and she obliged. The union of Sitri and Jeralt resulted in a child, Byleth, who was born without a heartbeat. Jeralt bore the Crest of Seiros due to Rhea transfusing her blood into him when he took a mortal blow meant for her. Sitri fell in love with the Knights of Seiros captain, Jeralt and the two were married and expecting a child. Her first and subsequent attempts never manifested Sothis's consciousness, leading to several centuries passing, each time failing to produce a proper host for her mother's soul.īy the Imperial Year 1159, her twelfth vessel, Sitri, was yet again another failure, but things were different this time. Rhea's later attempts involved creating a human vessel implanted with Sothis's Crest Stone in the hopes that Sothis could use them as a means to revive herself within them. Rhea's first attempt to revive Sothis using the Chalice of Beginnings and the blood of the Four Apostles resulted in the creation of an Umbral Beast, with the Apostles going into isolation shortly after. Still in despair from the death of her mother, Rhea desired to revive her mother to recover what she had lost. Rhea was able to kill Nemesis and reclaim both Sothis's Crest Stone and the Sword of the Creator from him. In the process, she founded the Adrestian Empire and the Church of Seiros, the latter devoted to the worship of Sothis. Rhea, the only survivor of the massacre, enraged and grief-stricken by the slaughter of her people and the theft of her mother, took on the name of Seiros and waged war against the King of Liberation to avenge her family and reclaim Sothis's remains. Nemesis subsequently slaughtered many of the remaining Nabateans at Zanado using the sword, and Those Who Slither in the Dark used their blood and bones to create Crests and Heroes' Relics for at least eleven of Nemesis's allies. Using her blood, they planted her Crest of Flames into Nemesis, while also fashioning her bones using their technology to create the Sword of the Creator, a sword of unparalleled power when used in tandem with the Crest of Flames. They convinced a lowly bandit, Nemesis, to raid the Holy Tomb and steal Sothis's remains. Needing to recover, she rested in the Holy Tomb, while the remaining Agarthans went underground.Ī secret underground civilization composed of the remnants of Agartha, known as Those Who Slither in the Dark, used Sothis's vulnerability to their advantage. One of her final children, Rhea, was born just as she finished restoring Fódlan. The war resulted in massive bloodshed and Sothis exhausting her power to restore the land, taking place over centuries. Her blessings were soon abused by the people of Fódlan, more specifically the people of a civilization named Agartha, leading to countless, pointless wars and even attempted to kill Sothis herself, seeing themselves as gods. Her descendants would help pave a future for Fódlan of great technological and societal advancement. Her blood was used to create a race of beings called the Nabateans, also known as the Children of the Goddess. She descended upon Fódlan several thousand years in the past and took on a human form to live among the people. In truth, Sothis is the consciousness of the Goddess, thus is in many ways the Goddess herself.
