What if Taeyeon was adopted to the Kim's Family when she was a baby by her real older brother. Then her older brother tell it is their decision to decide when she was ready to know the real truth. Her older brother left her so that mafia will never know about her. He wish for her to have a nice childhood. Her older brother is always there for her when it's her birthday and any special day. Her older brother left her with one letter and give it to the Kim Family saying that give her that lette