In an alternate timeline, a female Nobunaga Oda is seen jumping into an inferno before being engulfed by a strange light. She arrives in the modern day where she runs into a boy named Oota Seiichi, who helps her out. After spending a few days with Seiichi, Nobunaga desires to find a way back home and encounters three shrine maidens. They tell her that in order to return home, she must retrieve several `secret treasures` residing in the hearts of the other feudal lords who were accidentally warped to this world.