The Female Professor's Secret Account summary: I just retired from the army and went back to school, and I was in a normal college life. If you can’t afford it, you’ll be able to apply for a lecture that you really don’t want to hear. The reason why Ji-woo is reluctant to lecture is because he has been treated unfairly by Hayoung in the past. Crying and listening to Hayoung’s lecture by eating mustard. Unsurprisingly, I found Hayoung’s deviant account.