If you could turn all your memories into a song, what would it resemble?

Between being an exceptional student and taking care of the house alone during her mother's absence, Asuna Watase's only distraction is listening to her old crystal radio in her secret mountain hideout. One day, she accidentally tunes to a mysterious and melancholic melody, different from anything she has ever heard before. Soon after, an enigmatic boy named Shun saves her from a dangerous creature, unknowingly dragging Asuna on a long journey to a long lost land bound to surpass her very imagination, turning her once melodic life into an intricate requiem.

[Written by MAL Rewrite]

Sakura Kurumi, Erika's mother, is preparing for a fashion show in Paris. The girls of the school's fashion club are going to model there, including some high school students. While in Paris, they meet a mysterious boy named Oliver. However, Baron Salamander of the Desert Apostles appears, and the girls transform into Pretty Cures to defend Paris.

Rin Matsuoka’s childhood friend, Sousuke Yamazaki, has recently transferred to Samezuka Academy. Upon their reunion, the two reminisce about their childhood days and reaffirm their wish to swim together. Now with Rin, Sousuke, Captain Mikoshiba’s younger brother Momotarou Mikoshiba, and hard-working Aiichirou Nitori, the Samezuka relay team is formed, and their friendship deepens. However, as tournaments, races, and training go on, the reason for Sousuke’s sudden return begins to trouble him and affect his swimming. Noticing Sousuke’s change, Rin pushes to uncover what is holding him back. [Written by MAL Rewrite]

In an old mythical world, there reside spirit-like beings who oversee the natural order of the mortal realm. One of them, a young girl named Chun, has just come of age and must undergo her rite of passage by experiencing the human world for herself. While there, she gets caught in a fishing net during a storm and is rescued by a human boy.

However, the boy ends up drowning during the incident, and Chun returns to her realm full of guilt. Afterwards, she meets the Soul Keeper and decides to revive the boy in exchange for a part of her lifespan. Little does she know, meddling with the natural order of the world has severe consequences.

Da Yu Hai Tang is a story about sacrifice and redemption as Chun comes to terms with the limitations of her powers and deals with death, love, and her own emotions. She must decide if she will sacrifice everything to save the human boy or forsake her moral obligation for the order of the world.