Nineteen-year-old A Lei (played by Chen Bolin) likes to chase stars like many young people of the era. He and several of his best friends like the band Mayday, and they maintain the website of Mayday together. They even act as members of the band to reply to other fans. A Lei met Xuan Xuan (played by Liu Yifei), who also likes Mayday, on the Internet in a virtual identity. Xuan Xuan is a student of the Harbin Peking Opera Troupe. She took the opportunity to perform in Taipei with the troupe to secretly go to Sanyi. Xuan Xuan asked to meet A Lei and asked A Lei to take her to Sanyi. What's more incredible is that when they arrived in Sanyi, Xuan Xuan asked A Lei to break into an old woman's house. Both of them were taken to the police station. At this time, A Lei knew that she was from Harbin, but he didn't understand why she wanted to go to Sanyi, and he was also confused by Xuan Xuan's behavior. However, in just a few days of getting along, the feelings between the two became deeper. Xuan Xuan still left Taipei, but A Lei lost contact with her. While missing Xuanxuan day and night, Lei also decided to go to Sanyi to discover Xuanxuan's secret...