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.
Yoshitatsu's strategist Hanbei has now switched alliances and joined the Oda clan. With Hanbei's help, the Oda army hatches a plot to build a castle in a single night and reclaim the land that Yoshitatsu has conquered.