After the current archon, Raiden ei die his eldest son scaramouche took the throne as new archon along with his younger sister raiden shogun And well.. let's say inazuma nowadays is in chaos, scaramouche is a heartless, arrogant man, a huge complex of a God. And you a simple priestess were chosen to carry Scaramouche's children.. so now you're pregnant with the archon carrying your children