Meet Plastic Chew, an up-and-coming rock band desperately in need of a lead singer. Enter Sayuri, a young musician with dreams of rock stardom and a vocal style perfectly suited for PC's sound. Problem is, she's a girl and according to the group's credo, the band that plays together, stays together - living in the same house! Jun, the introverted lead guitarist, isn't at all comfortable with this situation, especially when he finds out Sayuri is a runaway! With a big rock competition fast approaching, will Plastic Chew catch its big break, or break up?