

In an alternate timeline, a female Oda Nobunaga 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 Seiichi Ōta, 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.
In an alternate timeline, a female Oda Nobunaga 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 Seiichi Ōta, 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.
As Tokugawa Ieyasu wakes up in the modern world, she becomes instantly astounded by an idol named Rosary. Wanting to sing and dance like her, Ieyasu is picked up by a talent agency who start training her to become an idol. As Ieyasu has doubts about whether she can do this, the producer takes her to see Rosary, showing how she never gave up, convincing Ieyasu to keep trying. As Ieyasu makes her debut as an idol, she ends up becoming more popular than Rosary, which leads her to become bitter towards her. Following the argument, Ieyasu remembers coming from the Sengoku world and is approached by the shrine maidens and is brought before Nobunaga. Wanting to stay and become an idol, Ieyasu relinquishes her secret treasure to Nobunaga.