Soon after she travels back to an ancient time, Cecilia Irvin, a doctor in the modern-day, wakes up and finds that she has just slept with a man. Soon, she gets pregnant and gives birth to a boy. After everything is settled, she has a few years of peaceful life. However, one day, her son brings her a "handsome-but-useless" man who is from the imperial secret office. And then here is a romantic and exciting story between this arrogant and mean doctor and the wicked and ruthless officer.