Tian Dazhi is an ordinary employee of a design company. He graduated from civil engineering, but he does the lowest level of work in the company: delivering water, repairing water and electricity, repairing air conditioners... He is often excluded by his colleagues. One day, he was unexpectedly appreciated by the beautiful boss who had just taken office, and was transferred to the design department, where he was frequently taken care of by the beautiful boss. Just when he thought he would start a relationship with the beautiful boss, he found out that the beautiful boss had cheated on him...