"Hey Yoobin. How do you become an adult?" she asked me one night while we were young and clueless. It was warm, a calm and silent night just for the two of us, splayed out on her queen bed. It was the last day of summer before our first year of high school. 

In a world where Sins are worn on your skin, seven girls try to live their lives at the fullest. Often times, maybe a bit too much than they should...