03/07/2009. Marie spent her summer in Korea with her family. She met three brothers. Jungkook, Teahyung and Jimin. They all got pretty close to each other. On her last day there she did a promise with one of the boys. One of the boys gave her a pendant and he kept a key to unlock it. " One day, when I'll see you again I'll open your pendant with my key. Then we will get married." ~ Ten years have passed and now Marie is back to Korea to find her first true love. Her memory isn't that clear and she doesn't remember him. Things will get complicated when she finds out that the boys don't exactly know who the promise boy is and they all say... " I am the one who made the promise! They all said and I was socked. They looked at each other with anger and..."