The Security Department used to be the department with the least presence in the Wanshou Group.Good old manager Hu Qiang (played by Li Jiahang), thorny programmer Ouyang Murphy (played by Guo Guo), chicken blood salesman Tang Haixing (played by Zhang Yiduo), gossip secretary Jin Ruoyu (played by Tu Hua), and obsessive-compulsive designer Su Kejie (played by Liu Zhongqiu), overworked and fat copywriter Pang Xiaobai (played by Li Wenfan), and optimist assistant Sha Lele (played by Sun Yiwen) deal with bad things that other departments are unwilling to do all day long.However, because he took the wrong approach during the Wanshou Group's layoffs and used his small skills to make a big difference, the Office of Breaking Down the Department not only saved itself, but also saved many colleagues from being laid off, which impressed the leaders.