Modern-day student Yoshiharu finds himself unexpectedly teleported back in time and smack dab in the middle of a battle. When a soldier sacrifices his life to save Yoshiharu, it’s up to him to fulfill his dying wish. But Yoshiharu hasn’t just gone back in time- he’s gone to an entirely different timeline altogether! Here, the warriors of old are instead beautiful young women, and the legendary warlord Nobunaga Oda is now the voluptuous Nobuna Oda- and she wants Yoshiharu to serve at her side.
After the Imagawa invade, Yoshiharu is fired for ignoring Nobuna's orders. Now, in order to regain Nobuna's trust, Yoshiharu sets out to find the enemy camp and report its location to Nobuna and her troops.