High school student Yosuke spends most of his free time sitting near a
floodgate and playing the same short tune on his acoustic guitar. He is often joined by a girl in his class, Yu. Yu hums Yosuke's tune to her older sister, who is mourning her deceased boyfriend. Yu sets up a few meetings between Yosuke and her sister. While talking with Yosuke after school, Yu kisses him, but Yosuke walks away, leaving Yu devastated. While walking to see Yosuke, Yu's sister is hit by a truck and enters a
coma. Yu tells Yosuke that she wants to hear his song when he finishes it. 17 years later, Yosuke is working in
music production in Tokyo. He shoos away a man interfering with an
intoxicated woman lying in the street and takes her to recover in his apartment. During a break at the studio, a woman plays a few notes from the song Yosuke played in his school days and he realizes she is Yu. They go back to Yosuke's apartment and drink sake. Yu tells him that her sister is still in a coma. She starts to cry, Yosuke comforts her, and they kiss. Yu and Yosuke visit her sister at the hospital and Yu leaves at the train station. Yosuke looks her up in the phone book and calls to say that he wants to play the finished song for her. On the way to meet her, he is stabbed by the man he shooed from the intoxicated woman. Yosuke lies in the street bleeding while Yu waits for him. Yu visits Yosuke in the hospital and tells him she loves him. Yosuke replies that he loves her, too. ==Cast==