In an effort to save their high school's memberless pop music club, four high school girls sign up for the after-school jam session. They may have rescued the club, but it's going to take some work for them to crank out any music. Yui Hirasawa loves pop, but she's never played and instrument or read music before. With the help of the other club members, Yui learns everything she needs to know to become and excellent lead guitar player. But the real test of her rock star potential is yet to come. What will her fellow students say when the pop music club performs at the school festival?!