Lansu has been able to hear whispers coming from the depths of the water since he was a child. In his dreams, there is always a glass palace emerging between the tides. She is the daughter of the sea and the wind, but she has never been able to undo the curse of the palace - every time the moonlight shines, the palace sinks deeper into darkness. In order to find the truth, Lansu embarks on a lonely diving trip, dancing with the memories and forgotten souls woven from seaweed. She was eager to solve the mystery of her father's disappearance, but found that what was buried in the underwater palace was not gold and power, but the rupture of time and emotion, and the unfinished promises of her previous life. The story unfolds with a poetic dialogue between Lansu and the palace, describing the tranquility and fantasy beauty of the underwater world. Only by facing the secrets that have been lost in the passing years can Lansu rebuild himself in the ripples. The underwater palace will eventually emerge, and at that moment, Lansu will learn to coexist with loss and hope.