The Eldest Son of Yan, the Eldest Son of Siheyuan, Applied His Skills to the Country and Joined the Ministry.

A modern mechanical engineer traveled through time and became Yan Jiezhe, the eldest son of Yan Bugui, the third uncle of the courtyard. Faced with the apprenticeship spot in the steel rolling mill that his father had worked so hard to obtain, he flatly refused, not wanting to be trapped in the workshop all his life by his family's endless blood sucking. Regardless of the ridicule and suppression from the neighbors in the college, and despite all kinds of obstructions from his stingy father, he studied on his own to prepare for college entrance examinations. With his advanced engineering knowledge, Yan Jiezhe successfully entered a top engineering college, refused to stay in school, and entered the scientific research system of national ministries and commissions. Yi Zhonghai, Jia Zhang and others in the hospital kept morally kidnapping, spreading rumors, and trying to take advantage of others, but he rebuffed them one by one. While solving technical problems in the unit, breaking the exclusion and trapping of colleagues, while dealing with the incompetence of the original family, in the wave of the times, with his skills, he climbed up step by step, and found his own promotion path. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.