A new type of male and female relationship that is both a "neighbor" and "Party A and Party B". Li Ze Nan, a neighbor of Shanghai Piao's elite, and Ye Xuan shared hardships in the workplace. During a crisis, they worked together to investigate the truth. They come to trust each other and developed a neighbor city love story of "Party B" and "Party A Devil".

• Xie Binbin
• Yang Dongqi
• Liu Zhe Hui
• Mengxi Chen
• Zhu Ran
• Guanhua Zhai
• Ma Li
• Ke Ying