During a music show that every typical idol attends to, a peculiar relationship forms. Sistar and Exo are the fated two who will be thrown into this cruel reality in which they just so happen to cross paths ending up in a rollercoaster ride of confusion and selfish desire of a human's mind. Backstage is where the fans don't see, where everything happens.    

Exo's Lay has been admitted to the hospital due to his fatique of trips to China and back to Korea plus the studio he uses in China as well as Exo promotions, Suho, as the leader stays behind and watches over him for a night. Suho had to break it to Lay, that he had to live in reality.

What happens when one side of a relationship feels overly confined in a relationship? You stay at home for most of your relationship, due to Leo being the only working half, but Leo gradually gets annoyed by other factors in your relationship....how will you react to Leo's change in behaivior?

You were sitting on the hospital bed writing a letter to Leo, your bestfriend and loving boyfriend. Why were you in the hospital you ask? Well you were diagnosed with cancerous tumor a few months ago, now that it has been months the doctors are just fighting to keep you alive a bit longer.