Takumi and Buchio encounter a mythical beast said to bring misfortune to those who hear its voice. Mutsumi learns that Jiro once killed a giant serpent, but it turns out the serpent remained as a vengeful spirit...

Seeing Buchio enjoying a happy life with his family makes Yuri remember her tumultuous past with her own family, leaving her angry and irritable. Then she finds herself caught up in an unbelievable incident...