Su Ting's assistant and best friend since high school. He drove the car when they encountered Ye Xiuming on the frozen river. Zhou Xubai witnessed the Gu Jianqing incident and understands Su Ting's emotional trauma. He is loyal, friendly in tone, and has become desensitized to the romantic pursuits directed at Su Ting. He refers to Su Ting as his boss and has known him for years.
