Ep. 10: Yuta and Mana investigate the Kogure family grave and encounter Nae's tragic past.
Aired on December 14, 2003

10
Yuta brings Mana to the Kogure family grave, where he recalls Nae from 60 years prior. Mana saves a girl chased by a man with dogs, but she kills the man, leading to her death at the hands of Mana's associates. Yuta searches for Mana and meets Sokichi, who reveals Nae was believed to have abandoned her fiancé Eijiro. Mana revives and finds Nae confined by Eijiro, who keeps her eternally young but ignorant of her past. Yuta is captured by Eijiro’s men and learns Nae used mermaid ashes from a travelling nun to create the Red Valley. After waking, Yuta shares an alternative legend about the nun’s vengeance. Nae escapes with Mana, prompting Eijiro to order their recapture and Yuta’s execution.
Episodes
- Ep. 6 · Yuta and Mana encounter a mysterious bandaged man after falling off a cliff.
- Ep. 7 · Yuta recalls Natsume, an immortal girl resurrected with mermaid liver, who dies after the monk removes her organ.
- Ep. 8 · Yuta and Mana encounter a boy named Nanao who reveals a dark family secret involving his mother.
- Ep. 9 · Mana escapes a scarred woman who replaces her face with Nanao's mother's visage after consuming mermaid flesh.
- Ep. 10 · Yuta and Mana investigate the Kogure family grave and encounter Nae's tragic past.
- Ep. 11 · Sokichi and Yuta flee to Red Valley where Nae dies after revealing Eijiro's past murder and revival plot.
- Ep. 12 · Yuta and Mana encounter Masato, whose mother returns from death after a boat accident.
- Ep. 13 · Masato's Ancient Past and the Aftermath of the House Fire