Jay Chou	...	(Director)
Jay Chou, Chi-long To	...	(Writer)
Jay Chou	...	Ye Xiang Lun
Lun-Mei Gwei	...	Lu Xiao Yu
Anthony Chau-Sang Wong	...	Sir Yip
Ming-Ming Su	...	Rain's Mom
Devon Song	...	Ah Bao
Kai-Syuan Tzeng	...	Sky
Jun Lang Huang	...	Ah Lang
Yuri Chan	...	Yu Hao
Chase Chang	...	Record Store Owner
Funky Tu	...	York
Yuki Huang	...	Ice
Aviis Zhong	...	Flower
Alex Wu	...	Music Teacher
Michael Lin	...	English Teacher
Yiao-Tzong Chou	...	Biology Teacher
Hsun-Wei David Chang	...	Maths Teacher
Michael Boyen	...	School President
Kuei-Giu Kong	...	Greengrocer
Therdsak Chanpan	...	Composer
Ping Bin Lee	...	Cinematographer

Summary: The story is about a high school student Ye, whom had studied in the school which coincidentally was where his father was headmaster at. Ye’s piano skill was unmistakably a notch above others. On the first day of school, while walking around the piano rooms, he heard an unknown and alluring melody played by Lu which led him to discovering the existence of her.

From then on, the two were always together, which thereafter led to incidents that gradually binded them together. However, Lu seemed to always carry a mysterious aura around her and when Ye tried to get to know her more, she always brushed off his questions by saying that it was a secret.

Unfortunately at the later stages , there was a misunderstanding between the both of them, which subsequently led to Lu’s disappearance. Ye was heartbroken & tried to locate her whereabouts frantically.

But the more he tried to find out, he realized that things were not as they seemed with the chain of events that spiraled along during his search for Lu’s whereabouts.