Rumiko Takahashi's signature wit and romance are displayed in the three-volume series that delves into her darkest themes. In the series, Yuta and Mana, immortal lovers, consume mermaid flesh to achieve eternal life. However, it poses the question – is immortality truly a gift or a curse? As they travel through Japan and time, they meet others who have also consumed the legendary substance, each with different outcomes. While Yuta and Mana enjoy the blessing of eternal life, others are plagued with a gruesome fate, transforming into "lost souls." The first book in the Mermaid Saga series, initially published as tankoubon, features three two-chapter stories: "A Mermaid Never Smiles," "The Village of Fighting Fish," and "Mermaid Forest."