Oda Nobuna no Yabou: Volume 11

Oda Nobuna no Yabou (織田信奈の野望) is a light novel series written by Kasuga Mikage and illustrated by Miyama-Zero, published by GA Bunko. Currently, the series has 12 volumes and a spin off novel.
Story Synopsis
Sagara Yoshiharu finds himself back in time during the Sengoku era. During his first day, he was about to be killed in a battlefield. He is saved by a man named Toyotomi Hideyoshi. The famous Daimyou, General and Politician who unified Japan and ended the Sengoku era, dies while saving Sagara Yoshiharu. With history completely changed, Sagara Yoshiharu tries to make things right again but it seems that history is taking a different course than the one he learned in his time. Oda Nobunaga, the famed Daimyo is now a brilliant but beautiful young girl named Oda Nobuna. Sagara Yoshiharu decides to replace Toyotomi Hideyoshi by taking his place and serve under the command of Oda Nobuna under the given name "Monkey". Rewriting history as he goes along.