"Hello. My name's Kai, and I'm a Class A traitor." Kai's never met his parents. He doesn't know when his birthday is. Come to that, he's not even sure what his name is, and he's just hit fifteen. Fifteen years of his life he's spent living off the streets and breaking the law—which, by anybody's standards, is pretty good going, even if it's illegal. And then L joins the cartel Kai's known as home for the past three years, and everything goes to hell.

Eight years after the fateful events during which three of South Korea’s biggest crime syndicates were taken down when ex-convict Xiumin betrayed his blood brother for a normal civilian life, Luhan has broken out of jail and he’s on his way to disrupt Minseok and Semi’s peaceful life.  To make matters worse, an incredibly important mission of Kai's has gone wrong in China, meaning that the sole remaining member of Luhan's arch-nemesis Mighty Mouth is back on the scene to hunt down Luhan’s lit