The Land-taking Battle During the Warring States Era Was Actually a _____ Battle!. Tokio and Calen travel back to 1560 into the Sengoku Era in order to find the True History about Oda Nobunaga. When they get to Kiyosu Castle, there were giant rhinoceros beetles decorating the roof! The guards at the gate even had dung beetle helmets and were holding bug nets rather than swords. Nobunaga says that the one who rules over bugs will rule over Japan and was having a bug-catching battle. Akudarama presents Nobunaga with a fake rhinoceros beetle, so they can move quickly up the ranks and control Nobunaga...