Ep. 12: Yuta and Mana encounter Masato, whose mother returns from death after a boat accident.
Aired on May 19, 2004

12
Yuta and Mana meet Masato, who travels from Tokyo to live with his mother. Two years later, Masato stabs her, but she revives the next morning. Yuta learns of a mysterious body and Masato’s mother’s return from a boat accident. The mother demands mermaid flesh, prompting Yuta to save Masato. Masato gives flesh to housekeeper Yukie, turning her into a Deformed that attacks them. Yuta kills the monster, realizing it is Yukie. Mana escapes with Masato to his hideout. Masato’s mother reveals she received mermaid flesh from an immortal Masato after a Pacific War bombing raid, making her his captive. She fled but was found after the boat accident news, then dies from Deformed wounds. In the hideout, Masato tases Mana and prepares to kill Yuta.
Episodes
- 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