The Japanese movie titled Taiyou no uta and directed by Norihiro Koizumi was released in 2006 and is categorized as drama.
Key cast members of Taiyou no uta include YUI
Takashi Tsukamoto.
The plot of Taiyou no uta is: Kaoru has Xeroderma Pigmentosum, a medical condition that forbids its bearer from being exposed from direct sunlight. She sleeps during the day, and is active at night. She busks every night in front of a station, playing the guitar. Outside her bedroom window, she spots a high school boy with a surfboard. She watches him and his friends visit the ocean every morning before going to sleep. One day, she introduces herself to him without letting him know about her medical condition. He is Kōji Fujishiro. When her friend drags her home, they sit by her window, while they watch Kōji meet his friends. Kaoru explains everything, and her friend notes that she probably goes to the same school as him, and offers to spy on him for her.
The next evening, she sits by the bus stop. Kōji arrives on his scooter. Both embarrassed, they start talking, with Kōji eventually promising to meet her, and listen to her sing another night, at the start of the school holidays. When they meet up, another obnoxious street performer has taken her spot. Kōji decides to take her to the city, where after seeing the sights, she starts playing in a square. (YUI's music video Skyline features this event). A substantial crowd gathers to hear her sing. Afterwards, they watch the ocean, and Kōji asks her out.
Their date ends abruptly as the sun breaks out and Kaoru flees home. Kōji is soon informed of Kaoru's condition, and is taken aback. For a while, Kaoru stubbornly refuses to see him. Kōji learns of a recording studio, where Kaoru could record her debut single, and takes up small jobs to earn the money to pay for it. Her father, out of concern, invites Kōji over one night. At dinner, Kōji reveals his plans for Kaoru's CD. As they walk home that night, the two begin to talk, and Kaoru slowly realizes how much Kōji truly cares for her.
As her medical condition begins to grow much worse overtime, she loses feeling in her hands, and is unable to play guitar. She assures Kōji that she still has her voice.
In the studio, she asks her family and friends to leave. She asks them to wait for the CD.
Some time later, and as promised, Kōji brings Kaoru to the beach to watch him surf. The protective suit she had left hanging for years is finally used. By now, she is in a wheelchair. She complains that the suit is getting hot. With a painful expression that fades quickly, Kaoru's father tries to convince her that if she takes off the suit, it cannot bother her anymore, that she could run around freely. She declines. With that, she struggles to stand up, and limps weakly toward Kōji. As she walks, she trips over the sand, and Kōji rushes to tend to her. She catches herself at the last minute, revealing that it was a feint, and giggles at his surprised face.
Later, Kaoru succumbs to her medical condition and eventually dies. She is laid to rest in a coffin full of sunflowers. Kōji and Kaoru's friends and family listen as Kaoru's CD is finally released. In the final scene Kōji rushes towards the waves with his mind replaying her voice..
