Ei, known as Raiden Ei, is the current Electro Archon of the nation Inazuma in the Teyvat Universe. She residents in the Plane of Euthymia where she is often visited by Yae Miko, a close ally and friend of hers.
After resolving the Arc 3 Timeline Loop, The Son, an old friend, would have his physical form killed by The Angel and she would become his next Host, gaining all of his memories and parts of his personality.[1] For some time after being his new Host, she would attempted to be convinced by him to return to the Nexus and continue his duty as Nexus Ruler, but she remains adamant about hers as the Electro Archon.[2]
