The troupe start a large-scale public disturbance, known as the Why Not Phenomenon, heading towards Sunpu Castle. During this distraction, the troupe make their way inside to search for the room containing Katsu and Saigo, who continue to argue against their will, much to Jubei's amusement. Meanwhile, Sotetsu finds his way in Sunpu Castle inside a distant room, preparing the clay pot for unknown reasons. Once Yojiro finds and fights Kanna, Yojiro makes use of candles and walls from the hallways as an advantage against Kanna. When Yojiro finally pins down Kanna, smoke begins to arise, prompting Yojiro to leave. The Head of the Conqueror influences Katsu and Saigo into a duel with swords, but the smoke engulfs the spirit of the Head of the Conqueror back into the clay pot, reverting Katsu and Saigo back to normal. After the troupe assemble, Sotetsu stabs Meifu before escaping with the clay pot. Jubei is stabbed by Ebisu and shot by Kanna. Before rowing off with the clay pot, Sotetsu releases ghost warriors at Yojiro to protect the Head of the Conqueror from being sealed. Katsu and Saigo agree to not turn Edo into a sea of fire.