Key Animation
Hinako is a surf-loving college student who has just moved to a small seaside town. When a sudden fire breaks out at her apartment building, she is rescued by Minato, a handsome firefighter, and the two soon fall in love. Just as they become inseparable, Minato loses his life in an accident at sea. Hinako is so distraught that she can no longer even look at the ocean, but one day she sings a song that reminds her of their time together, and Minato appears in the water. From then on, she can summon him in any watery surface as soon as she sings their song, but can the two really remain together forever? And what is the real reason for Minato's sudden reappearance?
Key Animation
Ruka is a young girl whose parents are separated and whose father works in an aquarium. When two boys, Umi and Sora, who were raised in the sea by dugongs, are brought to the aquarium, Ruka feels drawn to them and begins to realize that she has the same sort of supernatural connection to the ocean that they do. Umi and Sora's special power seems to be connected to strange events that have been occurring more and more frequently, such as the appearance of sea creatures far from their home territory and the disappearance of aquarium animals around the world. However, the exact nature of the boys' power and of the abnormal events is unknown, and Ruka gets drawn into investigating the mystery that surrounds her new friends.
