Sheng Yin Enterprise's CEO, Chen Ao Fu (Zhang Fu Jian) (a mafia company's CEO who ardently loves to eat cake) died of an illness, leaving one will behind for his missing granddaughter to inherit the inheritance and the power. A beautiful girl who loves to play billiards, Xiao Ting (Rainie Yang), who grew up together in an orphanage with Xiao Man (Zhu You Ting), therefore, unexpectedly, took charge of a mafia gang company. Originally, thinking that she will inherit the inheritance, Zhu Mei Dai (An Ya), the widow, and also the gang leader's most competent helper, his adopted son, Xiong Tian (Gao Ying Xuan) - the only thing that they can do now is to follow the will and assist the beautiful girl in becoming the mafia's leader. After the death of Chen Ao Fu, Jiang Long, who gained the support of his superiors, took this opportunity to penetrate deeply into the core of the mafia's operations to find evidence to bring down the mafia gang's empire.