There are girls and boys: a shy girl, Su-yeon who used to hand over her friends love letters to a boy, Eun-hye who always tends to smile with happiness and a lonely Dong-min who feels to be in danger of unrevealed the violence inside him. This is a story about heart-broken growing up.

I strongly used to believe in that a true heart can work out and tell someone whatever we want. As time goes by people hurt each other harder and grown up so together which makes the belief in hope of the relationship weaker• I’d like to describe our unstable relationship through our teenager one.