The Ambition of Oda Nobuna

Yoshiharu Sagara, a high school student, awakens to find himself in the midst of a fierce fight during the Sengoku era. Hideyoshi Toyotomi, a great figure, saves him, albeit at the hero's expense. The warrior begs Yoshiharu to succeed him as a feudal lord as he draws his last breath. Yoshiharu swears to prevent the timeline from further deviating now that history has been altered. Yoshiharu, however, discovers he has been transferred to a different universe where the majority of Japan's ancient warlords are now pretty ladies after saving Nobuna Oda, who he discovers is actually the famed Nobunaga Oda's female counterpart! Yoshiharu consents to join Nobuna's retainers and help her conquer Japan in order to redress the wrongs and find a route home. Yoshiharu learns that the historical knowledge he gained from playing the computer game "Nobunaga's Ambition" enables him to predict the future and change the course of a war as Nobuna launches her campaign. Yoshiharu wants to help his new lord realize her ambition and win the hearts of women all across the world by using this priceless gift to help the attractive generals of the Oda clan.