Kim's and Jeon's Both well known in Mafia world Blood thirsty for eachother Can go to any length to bring another down Kim Taehyung heir of Kim Mafia gets hold of Jeon Jungkook's weakness - His brother , Jeon Hoseok. All Taehyung wanted was to get Jungkook on his knees . Begging him But what will happen when he is brought to knee instead . Not by Jungkook but by His brother Jeon Hoseok. Book 1 of the series .