Y/N is the younger sister of Hoseok or also known as J-hope from bts. But when he holds a party she makes a mistake that will change her whole life and also that of the members from bts.
Jungkook and Yoona are super close, 'the perfect siblings' is their nickname. Jungkook always is more than ready to do everything for his younger sister, but just how far has he gone?