The love that best friends know + is between forensic doctor Cheng Chi and bar owner Qiao Ran
The love that Meng Kun knows about is between forensic doctor Cheng Chi and drug trafficker Qiao Ran
No one knows + the love between forensic doctor Cheng Chi and anti-drug policeman Lu Yuntong
And Lu Yuntong+ knows these three loves+
He is the only one who knows these three unforgettable loves
Only in the end + Cheng Chi realized that Lu Yuntong was not her opposite
But she will never have the chance to meet + anti-narcotics policeman Lu Yuntong
Purpose: justice