This is the Little Mermaid story stripped of Disney gloss and left to actually hurt. Lara doesn't get a tidy new ending, she gets a second countdown, waking up in Lake Biwa two centuries later with the same sea foam clock ticking and zero guarantee love fixes anything this time. Kinema Citrus throws their anniversary-project budget at every frame, and it shows, the cel work and water effects alone justify the runtime even in the slower stretches. What makes it land is that the romance isn't the plot, it's the whole character study, you're watching Lara relearn how to want something for herself after centuries of defining her worth through someone else's affection. The title isn't a spoiler warning so much as a dare, and when the goodbye actually arrives it still gets people who swore they were ready. If you came for a fairy tale and leave wrecked by a quiet lakeside scene instead, that's the show working exactly as intended.

Long ago, the mermaid princess Lara, raised by her father the sea king and her sisters, falls in love with a human prince. Their love is forbidden among mermaids, yet she takes a potion from the witch Grace and becomes human, knowing that if she fails to find true love she will turn to foam and vanish into the sea. Her wish goes unfulfilled and she disappears. Two hundred years later, Lara awakens in Lake Biwa with one last chance to seek the true love she lost. The show is a fantasy romance drama told across twelve episodes.