OVA
Description
Mana, born in 1965, grew up isolated in a secluded village of elderly women who masqueraded as mermaids. Confined since childhood in a hut with her limbs bound, she was groomed to serve as an immortal sacrifice. At fifteen, her caretakers fed her mermaid flesh to trigger her immortality, planning to later consume her for rejuvenation. Her rescue came when Yuta, a 500-year-old immortal, disrupted the ritual, exposing the villagers’ scheme. This act propelled her into a nomadic existence alongside Yuta as they sought to undo their eternal lifespans.
Her sheltered upbringing left her naive to commonplace knowledge—unfamiliar with cats, tea, or romance—yet she rapidly adapted. After years of immobilization, she taught herself to walk within moments of liberation. Observant and resilient, she navigated unfamiliar environments through mimicry. Her loyalty to Yuta anchored her choices, driving her to shield him from harm, even at personal risk.
Mana’s immortality entangled her in repeated mortal peril. A truck collision killed her temporarily, sparking conflicts with other immortals, including Towa and Sawa Kannagi—twins locked in a feud over mermaid experimentation. Towa nearly harvested her corpse for organ transplants, underscoring the fragility beneath her regenerative powers. These ordeals exposed her to immortality’s ethical quandaries, yet her resolve to aid Yuta persisted.
Her bond with Yuta deepened into a symbiotic partnership. Fleeting jealousy surfaced when he interacted with other women, though her stunted social understanding left these emotions nebulous. Subtle romantic tensions lingered unspoken between them. Gradually, she shifted from relying on Yuta’s protection to actively safeguarding him, confronting threats head-on.
Shaped by her past as a sacrificial pawn, Mana approached the world with cautious curiosity. Encounters with figures like Masato, a manipulative child immortal, and the tormented Kiryu siblings mirrored recurring themes of exploitation and despair tied to mermaid lore. Amidst this darkness, she clung to pragmatism, prioritizing survival and the faint possibility of a cure alongside Yuta.
Her sheltered upbringing left her naive to commonplace knowledge—unfamiliar with cats, tea, or romance—yet she rapidly adapted. After years of immobilization, she taught herself to walk within moments of liberation. Observant and resilient, she navigated unfamiliar environments through mimicry. Her loyalty to Yuta anchored her choices, driving her to shield him from harm, even at personal risk.
Mana’s immortality entangled her in repeated mortal peril. A truck collision killed her temporarily, sparking conflicts with other immortals, including Towa and Sawa Kannagi—twins locked in a feud over mermaid experimentation. Towa nearly harvested her corpse for organ transplants, underscoring the fragility beneath her regenerative powers. These ordeals exposed her to immortality’s ethical quandaries, yet her resolve to aid Yuta persisted.
Her bond with Yuta deepened into a symbiotic partnership. Fleeting jealousy surfaced when he interacted with other women, though her stunted social understanding left these emotions nebulous. Subtle romantic tensions lingered unspoken between them. Gradually, she shifted from relying on Yuta’s protection to actively safeguarding him, confronting threats head-on.
Shaped by her past as a sacrificial pawn, Mana approached the world with cautious curiosity. Encounters with figures like Masato, a manipulative child immortal, and the tormented Kiryu siblings mirrored recurring themes of exploitation and despair tied to mermaid lore. Amidst this darkness, she clung to pragmatism, prioritizing survival and the faint possibility of a cure alongside Yuta.