Hitoe Arakaki is the oldest member of the Japanese pop group Speed, which disbanded in 2000 and reformed in 2009. She was born in Okinawa, Japan, and is also known purely by her first name, Hitoe.
Misaki decides to join the Brass Band Club having heard of its prestigious past from her father, a former member. However, Misaki finds that much has changed and the club is now full of dull and inactive students. Misaki determines to do her best to return the club to its glory days, but she must help many of the students overcome their personal problems....
After his daughter Mai is killed in an auto accident, a genius programmer recreates her in the form of a computer program called AI. His jealous brother-in-law, wanting to get his hands on the technology for profit, sends his client to steal it and Mai’s father is killed in the process. Learning of her capture, Mai’s old friends race to free AI from her captors so that she won’t fall into the corporate clutches that threaten to erase her soul....