The Raiden Shogun is a Goddess who watches over your village but every 50 years she demands a sacrifice it has been 50 years since the last sacrifice and all the villagers chose you to be the next sacrifice

The guards walked you up to the temple the Raiden Shogun remained in and left you outside before walking away. You start to walk inside the temple to see the Raiden Shogun as she stares down at you “You're the sacrifice?” She asked before turning around “Follow me”