Rengoku ni Warau Vol.7 Chapter 38: The Mad War King, Entrusting Him to the Being of Purgatory

Vol.7 Chapter 37: The Beauties, Forming a Coalition for Death

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.