He Luo (played by Bu Guanjin) is lively, cheerful and eccentric. Although her academic performance is poor, she boasts that she will be admitted to a prestigious school. The top student Zhang Yuan (played by Bai Yu) is moved by He Luo's ambition and decides to help her with her homework. As they get along day and night, He Luo and Zhang Yuan gradually come together. They work together and look forward to a happy life after being admitted to the same university. However, what neither of them expected was that in the end, only He Luo fulfilled his promise. Zhang Yuan missed the university he wanted because of a mistake in the examination room. In this way, He Luo and Zhang Yuan began a long-distance relationship. In order to prove himself and reunite with He Luo as soon as possible, Zhang Yuan overworked and repeatedly failed in the process of starting a business. As a result, his relationship with He Luo was devastated and shaky.