In order to save her father, Su Wan signed a one-year engagement with Li Sijue, who controlled half of the Asian economy. In front of people, she is a docile and deceitful bankrupt daughter; in person, she is "J", the king of hackers who troubles Interpol, and "Nightingale", the arbiter of the underground intelligence network. Li Sijue thought he was marrying a caged bird, but he didn't know that she was hiding behind her waistcoat. When his mercenary empire was ambushed by top hackers, and when the gun that hunted her was aimed at his back - this locked marriage that began with a contract has long since become the ultimate showdown between the two kings. The two red lines on the pregnancy test stick made everything completely out of control...
