Hana is a school girl studying about the Sangoku era. In the library, she found an odd book, and the moment she moved one of the chess pieces inside, she is transported to another world. Here is her chance to gain some first hand knowledge of the Sangoku era. She meets Koumei, the strategist behind Gentoku’s camp, and follows him to his lord. She acts as his disciple, however, everyone looks down on her because of her age and her gender. With the mysterious book in her hands, she devices the winning strategies for her camp.
However, can she come up with the winning strategies to capture the heart of the guy of her dreams and find a way home?