LEE HEESEUNG, the mafia king had only one mission, Defeate VENOM. so, he and the TOP 6 mafias decided to defeate them together Sim jaeyun, Who is also a mafia, Develops feelings for LEE HEESEUNG. But lee heeseung had one rule 'don't fall in love with anyone' what happens when This rule of lee heeseung breaks. "Lee heeseug can't fall in love with anyone, if he did..He would burn down the whole world for his love" -> Season one and Season two are combined together in this book