Yunhee was a girl who was born from a poor family. After her father had passed away days after her birth, her mother couldn't afford to raise her and Taehyung up alone. Sadly her mother gave away Yunhee to a close friend who is willing enough to raise up her daughter. Now Yunhee is part of Park Jimin's family as they grew up together. One day the three of them met with five other boys and the seven guys debuted together as Bangtan Sonyeondan, also known as BTS. Even from the first time all of them met, Jeon Jungkook had liked Yunhee ever since then. Will Yunhee, Taehyung, Jimin and the other members ever find out about Yunhee's Long Lost Brother?