Agnès suddenly bids Kitarō farewell and flies away. She ends up on the bank of a pond, worrying to herself. There, Mana appears. It was the same pond where the two had first met, and ate lunch while talking with one another. Little by little, Agnès speaks out to Mana about her mother, older sister Adél, and even Backbeard's Brigadoon Project. On the other hand, Adél is also remembering her mother and her younger sister Agnès at Backbeard's castle, and comes to a decision. To protect the honor of the family of witches and her sister Agnès, Adél...!?