Rengoku ni Warau

Vol.7 Chapter 40: The Man from Purgatory, Laughing in the Midst of War
Vol.7 Chapter 39: Iga's Rebellion, Beginning of a Fierce War
Vol.8 Chapter 41: People of Iga, A Moment of Rest
Vol.7 Chapter 39: Iga's Rebellion, Beginning of a Fierce War
Vol.8 Chapter 41: People of Iga, A Moment of Rest
The story is set 300 years before Donten ni Warau, during the Tensho Period. At Lake Biwa, the largest lake in Japan, the battle with Orochi ensued.