Bong-Hee (Nam Ji-Hyun) is a judicial apprentice at the Judicial Research and Training Institute. One day, on the subway, she mistakes Ji-Wook (Ji Chang-Wook) for a molester. Ji-Wook is a prosecutor and denies being a molester, but Bong-Hee doesn’t believe him.
Later, she catches her boyfriend Hee-Joon (Chansung) in a hotel lobby with another woman. Her boyfriend is also a judicial apprentice at the same institute. Bong-Hee is hurt by her boyfriend’s apparent infidelity and tells him that she will sleep with the next man she bumps into.
