The 26-year-old Huo Jingchuan is in the complex world of gray industry, mature and calm but burdened with secrets; the 19-year-old Xia Chuxue has just entered college, ordinary and simple but has a stubborn personality. The two met and fell in love in the summer after the college entrance examination, but separated due to a crisis of trust. Three years later, Huo Jingchuan came to the city of Chuxue, determined to recover everything he had lost, but found that greater danger was approaching.