Lu Xiaozhao: Electrical designer sister, who works overtime and has prominent dark circles under her eyes, and has an avoidant personality.
Zhou Ming: The younger brother of a doctor, gentle and sinister, a bit pretty, and a straight-ball player.
This article tentatively plans to write about the mutual attraction between two people who got connected because of the hospital project.
Idea: I made this up because engineers and doctors work long hours.