At the freshmen school party, fat girl Tian Tiantian fell in love with her, so she made up her mind to lose weight. With the help of her friend Dai Shuya, she succeeded. She wanted to write a shocking love letter to her beloved Wang Zhi, but it was difficult to bring it to the table due to her writing skills, so she had to turn to her friend Dai Shuya, who is the representative of the Chinese class. She readily accepted her best friend's request and began a journey of finding love by writing a love letter to her best friend. Faced with the test of friendship and emotional entanglements along the way, can the three of them survive smoothly?