A 20-year-old tattooed social girl who doesn't study promises to let me buy her a phone to accompany me for one night.

This film tells the story of a 20-year-old tattooed social girl who doesn't study, agrees to let the male lead buy her a mobile phone as a condition for exchange, and is willing to accompany the male lead for one night. The film involves elements such as homemade self-portraits, real couples, couple self-portraits, wives cheating, secret love records, and wives wearing green hats, showing some emotional entanglements and human conflicts in real life.