A mermaid drowns in her own wish for love, gets a second chance 200 years later, and has to learn what love actually means when she's finally human. The show builds its entire weight on that one question: was the wish worth it? Every moment in modern Lake Biwa carries the ghost of that original desperation, turning what could've been a fantasy romance into something that breaks you because you understand why she wanted it so badly in the first place.
A mermaid's desperate wish for human love costs her everything. Two centuries later, she awakens in modern-day Lake Biwa with no memory of her past life, only confusion about her own existence. Now inhabiting a human body, she must navigate contemporary Japan while grappling with fragmented instincts that don't quite fit her new form. As she explores this strange world of convenience stores, smartphones, and ordinary people, something deeper calls to her. Pieces of her forgotten longing surface in unexpected moments, tugging at her consciousness. A chance encounter with a human boy reignites questions about love, connection, and whether the wish that destroyed her once can find redemption in this second chance. The show balances supernatural mystery with quiet moments of discovery. There's melancholy underneath every interaction, the weight of lost time pressing against her present. This is for viewers drawn to stories about loneliness and longing, where the fantastical serves character development rather than spectacle. It asks whether we're doomed to repeat the same mistakes when given another chance.