The courier Xiao Tao (Xu Tao) likes to see people's joy when they receive the express delivery. Lin Xi (Xie Xinyi) is a girl he accidentally knocked down when delivering a courier. The moment he knocked Lin Xi down, he felt that something was going to happen between them. Lin Xi is a novelist. Because her best friend left inexplicably after a breakup, she changed her career and opened an online store at home. After an unfortunate fall, she found that someone had secretly fallen in love with her. Jiang Xin (Li Weiyi) met the literary youth Jia Liang (Li Huajun) because of a game that she knew was a trap. In the end, she chose to disappear from Jia Liang's sight. The thief Wang Wei (Ji Chen) mistakenly thought that Lin Xi was the person to repay the money, and Lin thought that Wang Wei, who mistakenly entered the house, was the person who secretly fell in love with her. Wang Wei, who suddenly realized, retired from the underworld, but was unexpectedly retaliated by the black hand...