NAM disdains SHAN for writing the letter of apology and accuses him of wearing a mask. NAM finds that the underwear she bought with the other girls is gone and suspects SHAN. She plots to catch the thief. SHAN falls into her trap by accident, and she is more convinced that he is the thief. She then finds out that she was wrong and is sorry for causing an injury to SHAN’s hands. She brings him lunch. He takes the chance to play a trick on her. When she finds out that his hands were never hurt, she slaps him on the face.