Yamatonokami Yasusada and Kashuu Kiyomitsu are preparing to go on expedition in Edo with Yamabushi Kunihiro, Otegine, and Hakata Toushirou, who recently arrived at the citadel. However, just before they go off on their expedition their master has been laid low with a fever. On the advice of Yagen Toushirou, the group adds one more mission to their Edo expedition and heads into the mountains to collect medicinal herbs that can relieve a fever.

Tonbokiri and Nihongou arrive at the citadel and finally all three spears are together. A blue bird appears on the veranda and Nihongou is desperate to catch it for a certain reason. The three spears work together and chase after the blue bird. That night, Akita Toushirou sees a ghost and gets scared. Nikkari Aoe steps up to exterminate the ghost that lurks in the citadel.