Uno Saki is a 15 year old girl trying to make it (unsuccessfully) as an idol singer. One day, on her way home from a concert, she notices a violent-looking man trying to break into her home...
Yeah! Yeah! Yeah! Yeah! Yeah! Yeah!
Hey! Hey! Hey! Hey! Hey! Hey!
Ehi! Ehi! Ehi! Ehi!
Sim! Sim! Sim! Sim! Sim! Sim!