When five strangers with different attitude and ability meet and realise that music is in their soul, nothing and no one can ever come between them, they're unbeatable. But one goal that they all have in common is to show the world who they really are inside, these are the pledges to a band called TEMPEST-5.

Lead Singer: Seohyun

Rapper/Singer/Piano: Kyuhyun

Singer/Bass: Yoona

Drummer: Taecyeon

Guitar/Singer/Leader: Yuri

But as always theres ''the bad guys'' in the story. More likely their competition. A boy-band called Sub-0(Zero) Unit.

Lead Singer: Siwon

Bass/Singer: Donghae

Drummer/Singer: Heechul

Problems Arise as Donghae finds out his girlfriend Im Yoona was competing against them, Yoona's bandmates saw Donghae as a threat and disapproves on them dating while Siwon and Jessica tries to tear them apart by playing with Donghae's mind. Will the battle of the band cause them to end their relationship? Or is there something more sinister involving Jessica and Siwon that may lead to Yoona and Donghae destroying each other for the good of the competition.

The battle for music begins.........Who will become the Rising Star?