The story centers on high school student and band vocalist Kamikurata Kyouta, and how he stumbles on a secret war being waged by mysterious girls with otherworldly powers. Kyouta later forms a band named T.L. Signal with his friends Kojima Junichi and Hirota Shingo. Kyouta's band works for a company named CosmoPop. Junichi plays the keyboard and Shingo is the guitarist of the band. Things grow even more complicated when he discovers his girlfriend Sannou Yoriko might be the key to the war.