In Shanghai, where the economy is developing rapidly, this is an era when dreams shine and ideals cool down. It is the best and worst era, which belongs to young people era. Gu Li, the rich second generation, Nan Xiang, the flower of the literary school, Tang Wanru, a sports girl, and the ordinary Lin Xiao are good friends. They have a deep friendship but have different outlooks on life and values. They have been living in a dormitory for four years in college. In a blink of an eye, it was time to graduate from university, and everyone began to face endless challenges. Gu Yuan is Gu Li's boyfriend and also a rich second generation. He is good friends with Lin Xiao's boyfriend Jian Xi, and the four young people often date together. Nan Xiang's boyfriend Xi Cheng is a gangster who often hurts Nan Xiang, but because of his first love Nan Xiang, he is unwilling to give up the entanglement with him. Lin Xiao succeeded in the interview and became the personal assistant of Gong Ming, the director of a famous magazine, but because he was busy with his internship work, he neglected his boyfriend, Jian Xi cheated on him and broke up. Lin Xiao met Gong Ming's younger brother Zhou Chongguang at work. He is a popular writer but an idiot in life. Under the pressure of life, but also face complex emotional entanglements, how will the four girls choose