Brokeback Mountain was a modern romance novel written by American Bieber and Jack Gyllenhaal. The story was about two young people who met in the 1970s because of an accident. They got to know each other and gradually fell in love with each other on their journey. However, their identity and cultural background made them face huge obstacles and challenges. The protagonist of the story, Jack, was a photographer. He and the heroine, Lily, met during a filming event. Lily was a beautiful and independent artist, and Jack was attracted by her tenacity and courage. The two gradually met and got to know each other, and developed feelings for each other in the game. However, when Jack confessed to Lily, they were rejected by Lily. Lily told Jack that she came from a rich family while Jack came from a poor family. Their identities and cultural backgrounds made it impossible for them to be together. Even though Lily rejected Jack, the two of them still traveled together. During the journey, they supported each other and gradually established a deep relationship. However, their relationship was still limited by their identity and culture. Lily's family objected to her being with Jack, and Jack's family did not understand why he chose to be with Lily. In the end, Jack lost his life in an accident. In her grief, Lily realized that she had to face her family, friends, and her future. She decided to leave Jack's family and start her own life again. At the end of the story, Lily told the love story between her and Jack and expressed her nostalgia for Jack and her love for life.