The Big Sister of Guns and Glory

(Underworld + undercover agent caught between two sides + fast-paced + no saintly heroine + multiple female leads) After the underworld boss dies unexpectedly, his glamorous sister-in-law takes charge. Undercover agent Xu Longsheng takes down the gang's top enforcer with his fists and defeats the feared Red Pole with his kicks, becoming the boss lady's personal bodyguard. As they spend more time together, he gradually discovers that Xu Jingshu is hiding many astonishing secrets, and their feelings for each other grow stronger. Xu Jingshu: "From now on, call me Sis." Xu Longsheng: "Huh? Shouldn't I call you Baby from now on?" With his dual identity as an undercover agent and a gangster, his path is bound to be full of bloodshed and power plays. But Xu Longsheng is the kind of ruthless man who won't quit until he reaches the Yellow River. He'll go all the way down this blood-soaked road, no matter what!