Story of a girl named yn who have a strict brother named Jeon Jungkook
but because of some work he have to go out of the country and his friend jimin is taking care of yn and jimin is more strict then Jungkook
8 siblings grew up having missions. Unfortunately some tragedy happened and their "BOSS" stopped giving missions. Years past they receive one call from someone not knowing that if they answered the call something unexpected will happen to them.
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