Hu Duoduo (played by Sun Jian) is cautious and timid. On the surface, he seems ordinary, but in fact, he has a lot of tricks. However, because of his introversion and shyness, he is often ignored by others. Deng Xiaoyu (played by Bao Beier) has an average IQ, but his personality is optimistic and cheerful for no reason. Although he is often bullied by his classmates because of his short stature, he is naturally generous and never takes these things to heart. These two very different people met on the university campus and formed a combination of two people who are always causing trouble, which is quite appropriate. Qiu Yingzi (played by Chen Yanxi) is a recognized school beauty in the school. With her beautiful appearance and excellent grades, she has been followed by high-quality boys in the past four years, but Qiu Yingzi is unmoved. Zhou You (played by Zheng Kai) has a high IQ and is a well-known figure active in the hacker community. In reality, he has been fighting wits and courage with his teacher. Graduation season is approaching, and everyone hopes that their last youth can burn and bloom the most brilliant fireworks.