"I believe you will be there beyond the end of war." Through the power of a mysterious book, high school girl Hana finds herself transported to a world resembling the Three Kingdoms, where she becomes a disciple of the strategist Kongming and joins Liu Bei's army. Guided by Kongming, Hana throws herself into battle in her own way, but after the Battle of Red Cliffs, just as she sets her sights on the goal of "ending war," the book's power sends her back even further into the past…