Tang Yin, the first porter in Little Yao Man, is flamboyant, willful and beautiful. Lu Chi, a bookworm who just turned around, is serious, quiet and stuttering. In the eyes of others, two people are like standard friends. Those students who pass by the third floor every day can hear what Tang Yinqiang said when he was late. Later, they learned that what is hidden under the nerd's appearance is a strong possessiveness.