Naomi receives a letter from her mother in Oedo, informing her about a strange creature roaming within the mountains of Oedo. When Burton and Berecca hear about the news, the two immediately thinks about the Yokai they sealed 500 years ago in Old Oedo… As a result, Burton and Berecca decide to accompany Naomi on her trip home. On top of this, Emma and Lucy also join them! Upon arriving at Oedo, the entire village is peaceful to the point the crew forgets about the existence of the mysterious being… Until the group suddenly hears the screams of villagers, and the creature emerges from the shadows!