Fang Jincheng's brother and Jiang Qingyun were once comrades-in-arms. During the last mission, Fang Jincheng's brother Fang Boyan's identity as an anti-drug policeman was accidentally exposed. In order to prevent years of hiding in vain, Jiang Qingyun had to kill Fang Boyan to win trust. Before his death, Fang Boyan told Jiang Qingyun that there was a greater force behind them, and asked Jiang Qingyun to protect his only relative, Fang Jincheng, and Jiang Qingyun agreed. After that, the fate of the two began to entangle
Intention: The flower of love blooms in the soil of hate