Jeralt grew suspicious of Rhea due to the circumstances of his wife's death and Byleth's condition, who had a pulse but no heartbeat. Acquiescing to Sitri's dying wish, Rhea implanted the Crest Stone into the child named Byleth, reviving them, at the cost of Sitri's life. As both were destined to die, the mother pleaded Rhea to implant her Crest of Flames into her child. Sitri and Jeralt eventually sired a child however, upon its birth, both Sitri and the child were feebly weak and near death. This resulted in him inheriting a Major Crest of Seiros. Her twelfth creation, Sitri, also a failure, had fallen in love with a man named Jeralt, the captain of her Knights of Seiros, and one of the persons whom Seiros, now going under the name Rhea, had transfused her blood into after he took a near-fatal blow for her.
Still awash with grief at the death of Sothis, Seiros secretly devoted herself to experimenting on implanting her mother's crest stone into created bodies in an attempt to revive her. Seiros did this in the hope of maintaining peace and tried to guide Fódlan as her mother would, but she never saw herself as adequate for the role. The church rewrote history, hiding the existence of the Children of the Goddess, Agarthans, and the true origin of Crests and Relics, and revising the origins and allegiances of Nemesis and his Crest-wielding allies, the Ten Elites. She allied with her fellow survivors (whose human forms came to be known as the Four Saints) and Wilhelm I, to whom she granted her Crest, to oppose Nemesis in the War of Heroes, eventually killing Nemesis in battle at the Tailtean Plains and leading to the creation of the Adrestian Empire and the extended influence of the Church of Seiros with her as its head. Rhea was the only survivor of the massacre and was left one of the few surviving Nabateans.ĭesperate for revenge, Rhea, now calling herself Seiros, wandered the lands looking for allies to oppose Nemesis and his forces. Armed with the relic, Nemesis returned to Zanado to massacre the Nabateans living there to make Heroes' Relics and Crests from their bodies. From Sothis's body, Those Who Slither in the Dark supplied Nemesis with her Crest of Flames and the Sword of the Creator. However, remnants of the Agarthans fled into hiding underground, leading them to become Those Who Slither in the Dark.Ĭenturies or perhaps even a millennia later (it took a very long time for Sothis to restore Fódlan), Those Who Slither in the Dark convinced Nemesis, a bandit, to invade the Holy Tomb, where Sothis was sleeping after exhausting herself healing the land from the by-then ancient war, in order to steal her body. Eventually, Sothis and the Nabateans defeated the Agarthans, but the war devastated Fódlan, and left most of the humans dead. The Agarthans enacted various wars among themselves, eventually thinking of themselves as gods and turning on Sothis to kill her and the other Nabateans. She and the other children coexisted with the native Agarthans and shared their knowledge with them, leading their shared civilization to become technologically advanced and prosper. In the ancient past, the Children of the Goddess were born of Sothis's blood after the progenitor god arrived in Fódlan. Seiros was a name she chose when carrying out these tasks, rather than her real name. She is also Seiros herself, the saint who founded the Church of Seiros, defeated Nemesis, and helped found the Adrestian Empire. Rhea is actually one of the Nabateans, the original children of the progenitor god Sothis. She serves as a key figure for the Officers Academy as well, assigning missions to the three houses each month. She previously was Jeralt's superior when he was Captain of the Knights of Seiros until he left her employ in Wyvern Moon 1159. Rhea is the Archbishop of the Church of Seiros and leader of the Knights of Seiros as a result. 7 Choose Your Legends Placement History.1.1.1 Azure Moon/Verdant Wind/Silver Snow.