Oda Nobunaga and Nōhime were originally married to mend a hostile relationship between neighbouring regions. Unfortunately, they were like oil and water, making for a somewhat unhappy marriage. When Oda's enemy, Imagawa Yoshimoto, attacks Owari with his vast army, Oda is devastated by the overwhelming gap in military strength. However, Nohime encourages him not to despair, and the pair draw up a tactical plan that will allow them to overcome the odds.

Just 80 years ago, the peaceful sea was a battlefield. Soldiers continued to fight, dreaming of returning home, and their families continued to pray and wait for their safety. What stories were there in each of their lives, and what were they each thinking?