Matthew College, a prestigious school in the area, is immersed in swells from teachers to students. Lu SIR, with a mediocre performance, has been marginalized for a long time, hovering on the verge of elimination; the 5C class he teaches has become a hot topic with elite students, and has been much oppressed. In the student union election, Lu SIR assisted the amateur cabinet headed by Xianzi and Zhuangzi, the "Old Knight", and successfully broke the monopoly of elite students. However, at this time, another direct-funded turmoil came to the fore, and teachers of different parties in the school were exhausted.