Hinako doesn't want to be saved. She wants Shiori to eat her, and the show understands that wanting to die isn't a plot device to overcome, it's a weight that doesn't lift just because someone shows up to love you. The mermaid stays anyway, and in that unbearable gap between two people where one is already gone and one keeps showing up, the show builds something quieter than hope, harder to name. The soundtrack arrives like breath, like the one thing worth staying conscious for, and every episode costs you something real.
Hinako has spent years existing in isolation by the sea, untethered after grief consumed her family. When a mermaid named Shiori pulls her from the jaws of a predator, everything shifts. Shiori makes a simple declaration: she's come to devour Hinako completely, but not immediately. First, she'll remain close, protecting her from the threats that lurk in the darkness. For Hinako, this strange arrangement becomes something unexpected. In Shiori's presence, a feeling she'd abandoned resurfaces: the possibility of an ending. Not the messy uncertainty she's learned to tolerate, but something final. Something chosen. What begins as a predator-prey dynamic transforms into something far more complicated. As Shiori stays by her side night after night, genuine connection bleeds through the supernatural contract between them. The story becomes a quiet meditation on loneliness, desire, and the fragile hope that emerges when two broken things find each other in the dark.