The CEO of Sheng Yin Enterprise, Chen Ao Fu (Zhang Fu Jian), passed away due to an illness, leaving a will behind for his missing granddaughter to inherit both the wealth and power of the company. Xiao Ting (Rainie Yang), a young woman who enjoys playing billiards and grew up in an orphanage with Xiao Man (Zhu You Ting), unexpectedly finds herself in charge of the mafia organization. With the support of the widow Zhu Mei Dai (An Ya) and the capable helper Xiong Tian (Gao Ying Xuan), who is also the adopted son of the gang leader, they must now assist Xiao Ting in taking over the mafia empire as per the will left behind by Chen Ao Fu. Seizing the opportunity after Chen Ao Fu's death, Jiang Long gains the support of his superiors to infiltrate the mafia's operations and gather evidence to bring down the criminal organization.